Home / 13,381.40-18,466.52-7,413.19

Finding the Fourth Proportional to 13,381.40, 18,466.52 and 7,413.19

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Solution

The fourth proportional to 13,381.40, 18,466.52 and 7,413.19 is: 10,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.40 : 18,466.52 = 7,413.19 : x
  2. Step 2: Convert to fraction form
    13,381.40/18,466.52 = 7,413.19/x
  3. Step 3: Cross multiply
    13,381.40x = 18,466.52 × 7,413.19
  4. Step 4: Simplify right side
    13,381.40x = 136,895,738.17
  5. Step 5: Solve for x
    x = 136,895,738.17/13,381.40
  6. Step 6: Final answer
    x = 10,230.30

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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.