Home / 15,372.71-23,022.11-8,778.91

Finding the Fourth Proportional to 15,372.71, 23,022.11 and 8,778.91

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Solution

The fourth proportional to 15,372.71, 23,022.11 and 8,778.91 is: 13,147.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,372.71 : 23,022.11 = 8,778.91 : x
  2. Step 2: Convert to fraction form
    15,372.71/23,022.11 = 8,778.91/x
  3. Step 3: Cross multiply
    15,372.71x = 23,022.11 × 8,778.91
  4. Step 4: Simplify right side
    15,372.71x = 202,109,031.70
  5. Step 5: Solve for x
    x = 202,109,031.70/15,372.71
  6. Step 6: Final answer
    x = 13,147.26

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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.