Home / 13,387.46-18,474.55-7,337.75

Finding the Fourth Proportional to 13,387.46, 18,474.55 and 7,337.75

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Solution

The fourth proportional to 13,387.46, 18,474.55 and 7,337.75 is: 10,126.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.46 : 18,474.55 = 7,337.75 : x
  2. Step 2: Convert to fraction form
    13,387.46/18,474.55 = 7,337.75/x
  3. Step 3: Cross multiply
    13,387.46x = 18,474.55 × 7,337.75
  4. Step 4: Simplify right side
    13,387.46x = 135,561,592.57
  5. Step 5: Solve for x
    x = 135,561,592.57/13,387.46
  6. Step 6: Final answer
    x = 10,126.01

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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.