Home / 12,502.28-17,253.14-7,124.56

Finding the Fourth Proportional to 12,502.28, 17,253.14 and 7,124.56

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Solution

The fourth proportional to 12,502.28, 17,253.14 and 7,124.56 is: 9,831.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,502.28 : 17,253.14 = 7,124.56 : x
  2. Step 2: Convert to fraction form
    12,502.28/17,253.14 = 7,124.56/x
  3. Step 3: Cross multiply
    12,502.28x = 17,253.14 × 7,124.56
  4. Step 4: Simplify right side
    12,502.28x = 122,921,005.80
  5. Step 5: Solve for x
    x = 122,921,005.80/12,502.28
  6. Step 6: Final answer
    x = 9,831.89

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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.