Home / 14,761.25-20,369.09-8,472.41

Finding the Fourth Proportional to 14,761.25, 20,369.09 and 8,472.41

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Solution

The fourth proportional to 14,761.25, 20,369.09 and 8,472.41 is: 11,691.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,761.25 : 20,369.09 = 8,472.41 : x
  2. Step 2: Convert to fraction form
    14,761.25/20,369.09 = 8,472.41/x
  3. Step 3: Cross multiply
    14,761.25x = 20,369.09 × 8,472.41
  4. Step 4: Simplify right side
    14,761.25x = 172,575,137.60
  5. Step 5: Solve for x
    x = 172,575,137.60/14,761.25
  6. Step 6: Final answer
    x = 11,691.10

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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.