Home / 15,921.80-23,885.60-5,248.76

Finding the Fourth Proportional to 15,921.80, 23,885.60 and 5,248.76

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Solution

The fourth proportional to 15,921.80, 23,885.60 and 5,248.76 is: 7,874.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,921.80 : 23,885.60 = 5,248.76 : x
  2. Step 2: Convert to fraction form
    15,921.80/23,885.60 = 5,248.76/x
  3. Step 3: Cross multiply
    15,921.80x = 23,885.60 × 5,248.76
  4. Step 4: Simplify right side
    15,921.80x = 125,369,781.86
  5. Step 5: Solve for x
    x = 125,369,781.86/15,921.80
  6. Step 6: Final answer
    x = 7,874.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.