Home / 18,747.42-28,121.17-5,598.76

Finding the Fourth Proportional to 18,747.42, 28,121.17 and 5,598.76

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Solution

The fourth proportional to 18,747.42, 28,121.17 and 5,598.76 is: 8,398.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.42 : 28,121.17 = 5,598.76 : x
  2. Step 2: Convert to fraction form
    18,747.42/28,121.17 = 5,598.76/x
  3. Step 3: Cross multiply
    18,747.42x = 28,121.17 × 5,598.76
  4. Step 4: Simplify right side
    18,747.42x = 157,443,681.75
  5. Step 5: Solve for x
    x = 157,443,681.75/18,747.42
  6. Step 6: Final answer
    x = 8,398.15

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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.