Home / 16,221.76-22,385.99-9,148.19

Finding the Fourth Proportional to 16,221.76, 22,385.99 and 9,148.19

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Solution

The fourth proportional to 16,221.76, 22,385.99 and 9,148.19 is: 12,624.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,221.76 : 22,385.99 = 9,148.19 : x
  2. Step 2: Convert to fraction form
    16,221.76/22,385.99 = 9,148.19/x
  3. Step 3: Cross multiply
    16,221.76x = 22,385.99 × 9,148.19
  4. Step 4: Simplify right side
    16,221.76x = 204,791,200.80
  5. Step 5: Solve for x
    x = 204,791,200.80/16,221.76
  6. Step 6: Final answer
    x = 12,624.48

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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.