Home / 14,136.27-19,511.56-8,171.66

Finding the Fourth Proportional to 14,136.27, 19,511.56 and 8,171.66

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Solution

The fourth proportional to 14,136.27, 19,511.56 and 8,171.66 is: 11,278.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,136.27 : 19,511.56 = 8,171.66 : x
  2. Step 2: Convert to fraction form
    14,136.27/19,511.56 = 8,171.66/x
  3. Step 3: Cross multiply
    14,136.27x = 19,511.56 × 8,171.66
  4. Step 4: Simplify right side
    14,136.27x = 159,441,695.97
  5. Step 5: Solve for x
    x = 159,441,695.97/14,136.27
  6. Step 6: Final answer
    x = 11,278.91

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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.