Home / 10,778.59-16,151.40-7,255.57

Finding the Fourth Proportional to 10,778.59, 16,151.40 and 7,255.57

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Solution

The fourth proportional to 10,778.59, 16,151.40 and 7,255.57 is: 10,872.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.59 : 16,151.40 = 7,255.57 : x
  2. Step 2: Convert to fraction form
    10,778.59/16,151.40 = 7,255.57/x
  3. Step 3: Cross multiply
    10,778.59x = 16,151.40 × 7,255.57
  4. Step 4: Simplify right side
    10,778.59x = 117,187,613.30
  5. Step 5: Solve for x
    x = 117,187,613.30/10,778.59
  6. Step 6: Final answer
    x = 10,872.26

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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.