Home / 13,387.26-18,474.19-7,337.45

Finding the Fourth Proportional to 13,387.26, 18,474.19 and 7,337.45

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Solution

The fourth proportional to 13,387.26, 18,474.19 and 7,337.45 is: 10,125.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.26 : 18,474.19 = 7,337.45 : x
  2. Step 2: Convert to fraction form
    13,387.26/18,474.19 = 7,337.45/x
  3. Step 3: Cross multiply
    13,387.26x = 18,474.19 × 7,337.45
  4. Step 4: Simplify right side
    13,387.26x = 135,553,445.42
  5. Step 5: Solve for x
    x = 135,553,445.42/13,387.26
  6. Step 6: Final answer
    x = 10,125.56

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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.