Home / 13,381.47-18,466.41-7,413.15

Finding the Fourth Proportional to 13,381.47, 18,466.41 and 7,413.15

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Solution

The fourth proportional to 13,381.47, 18,466.41 and 7,413.15 is: 10,230.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.47 : 18,466.41 = 7,413.15 : x
  2. Step 2: Convert to fraction form
    13,381.47/18,466.41 = 7,413.15/x
  3. Step 3: Cross multiply
    13,381.47x = 18,466.41 × 7,413.15
  4. Step 4: Simplify right side
    13,381.47x = 136,894,267.29
  5. Step 5: Solve for x
    x = 136,894,267.29/13,381.47
  6. Step 6: Final answer
    x = 10,230.14

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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.