Home / 18,760.38-28,130.18-7,674.86

Finding the Fourth Proportional to 18,760.38, 28,130.18 and 7,674.86

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Solution

The fourth proportional to 18,760.38, 28,130.18 and 7,674.86 is: 11,508.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,760.38 : 28,130.18 = 7,674.86 : x
  2. Step 2: Convert to fraction form
    18,760.38/28,130.18 = 7,674.86/x
  3. Step 3: Cross multiply
    18,760.38x = 28,130.18 × 7,674.86
  4. Step 4: Simplify right side
    18,760.38x = 215,895,193.27
  5. Step 5: Solve for x
    x = 215,895,193.27/18,760.38
  6. Step 6: Final answer
    x = 11,508.04

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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.