Home / 10,514.28-15,773.92-3,118.80

Finding the Fourth Proportional to 10,514.28, 15,773.92 and 3,118.80

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Solution

The fourth proportional to 10,514.28, 15,773.92 and 3,118.80 is: 4,678.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,514.28 : 15,773.92 = 3,118.80 : x
  2. Step 2: Convert to fraction form
    10,514.28/15,773.92 = 3,118.80/x
  3. Step 3: Cross multiply
    10,514.28x = 15,773.92 × 3,118.80
  4. Step 4: Simplify right side
    10,514.28x = 49,195,701.70
  5. Step 5: Solve for x
    x = 49,195,701.70/10,514.28
  6. Step 6: Final answer
    x = 4,678.94

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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.