Home / 10,101.92-15,209.07-8,877.20

Finding the Fourth Proportional to 10,101.92, 15,209.07 and 8,877.20

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Solution

The fourth proportional to 10,101.92, 15,209.07 and 8,877.20 is: 13,365.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,101.92 : 15,209.07 = 8,877.20 : x
  2. Step 2: Convert to fraction form
    10,101.92/15,209.07 = 8,877.20/x
  3. Step 3: Cross multiply
    10,101.92x = 15,209.07 × 8,877.20
  4. Step 4: Simplify right side
    10,101.92x = 135,013,956.20
  5. Step 5: Solve for x
    x = 135,013,956.20/10,101.92
  6. Step 6: Final answer
    x = 13,365.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.