Home / 8,514.38-11,747.87-4,978.73

Finding the Fourth Proportional to 8,514.38, 11,747.87 and 4,978.73

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Solution

The fourth proportional to 8,514.38, 11,747.87 and 4,978.73 is: 6,869.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,514.38 : 11,747.87 = 4,978.73 : x
  2. Step 2: Convert to fraction form
    8,514.38/11,747.87 = 4,978.73/x
  3. Step 3: Cross multiply
    8,514.38x = 11,747.87 × 4,978.73
  4. Step 4: Simplify right side
    8,514.38x = 58,489,472.81
  5. Step 5: Solve for x
    x = 58,489,472.81/8,514.38
  6. Step 6: Final answer
    x = 6,869.49

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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.