Home / 13,713.80-18,925.11-7,426.17

Finding the Fourth Proportional to 13,713.80, 18,925.11 and 7,426.17

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Solution

The fourth proportional to 13,713.80, 18,925.11 and 7,426.17 is: 10,248.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.80 : 18,925.11 = 7,426.17 : x
  2. Step 2: Convert to fraction form
    13,713.80/18,925.11 = 7,426.17/x
  3. Step 3: Cross multiply
    13,713.80x = 18,925.11 × 7,426.17
  4. Step 4: Simplify right side
    13,713.80x = 140,541,084.13
  5. Step 5: Solve for x
    x = 140,541,084.13/13,713.80
  6. Step 6: Final answer
    x = 10,248.15

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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.