Home / 10,778.90-16,170.17-5,516.19

Finding the Fourth Proportional to 10,778.90, 16,170.17 and 5,516.19

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Solution

The fourth proportional to 10,778.90, 16,170.17 and 5,516.19 is: 8,275.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.90 : 16,170.17 = 5,516.19 : x
  2. Step 2: Convert to fraction form
    10,778.90/16,170.17 = 5,516.19/x
  3. Step 3: Cross multiply
    10,778.90x = 16,170.17 × 5,516.19
  4. Step 4: Simplify right side
    10,778.90x = 89,197,702.47
  5. Step 5: Solve for x
    x = 89,197,702.47/10,778.90
  6. Step 6: Final answer
    x = 8,275.22

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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.