Home / 13,717.52-18,930.15-7,429.92

Finding the Fourth Proportional to 13,717.52, 18,930.15 and 7,429.92

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Solution

The fourth proportional to 13,717.52, 18,930.15 and 7,429.92 is: 10,253.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.52 : 18,930.15 = 7,429.92 : x
  2. Step 2: Convert to fraction form
    13,717.52/18,930.15 = 7,429.92/x
  3. Step 3: Cross multiply
    13,717.52x = 18,930.15 × 7,429.92
  4. Step 4: Simplify right side
    13,717.52x = 140,649,500.09
  5. Step 5: Solve for x
    x = 140,649,500.09/13,717.52
  6. Step 6: Final answer
    x = 10,253.27

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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.