Home / 9,939.92-13,717.34-5,463.78

Finding the Fourth Proportional to 9,939.92, 13,717.34 and 5,463.78

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Solution

The fourth proportional to 9,939.92, 13,717.34 and 5,463.78 is: 7,540.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.92 : 13,717.34 = 5,463.78 : x
  2. Step 2: Convert to fraction form
    9,939.92/13,717.34 = 5,463.78/x
  3. Step 3: Cross multiply
    9,939.92x = 13,717.34 × 5,463.78
  4. Step 4: Simplify right side
    9,939.92x = 74,948,527.95
  5. Step 5: Solve for x
    x = 74,948,527.95/9,939.92
  6. Step 6: Final answer
    x = 7,540.15

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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.