Home / 13,381.38-18,466.43-7,413.15

Finding the Fourth Proportional to 13,381.38, 18,466.43 and 7,413.15

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Solution

The fourth proportional to 13,381.38, 18,466.43 and 7,413.15 is: 10,230.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.38 : 18,466.43 = 7,413.15 : x
  2. Step 2: Convert to fraction form
    13,381.38/18,466.43 = 7,413.15/x
  3. Step 3: Cross multiply
    13,381.38x = 18,466.43 × 7,413.15
  4. Step 4: Simplify right side
    13,381.38x = 136,894,378.49
  5. Step 5: Solve for x
    x = 136,894,378.49/13,381.38
  6. Step 6: Final answer
    x = 10,230.21

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Find fourth proportional to 6,690.69, 9,233.21 and 3,706.58
Half scale
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Double scale
Find fourth proportional to 13,382.38, 18,467.81 and 7,414.15
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.