Home / 16,221.16-22,390.80-9,508.96

Finding the Fourth Proportional to 16,221.16, 22,390.80 and 9,508.96

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Solution

The fourth proportional to 16,221.16, 22,390.80 and 9,508.96 is: 13,125.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,221.16 : 22,390.80 = 9,508.96 : x
  2. Step 2: Convert to fraction form
    16,221.16/22,390.80 = 9,508.96/x
  3. Step 3: Cross multiply
    16,221.16x = 22,390.80 × 9,508.96
  4. Step 4: Simplify right side
    16,221.16x = 212,913,109.61
  5. Step 5: Solve for x
    x = 212,913,109.61/16,221.16
  6. Step 6: Final answer
    x = 13,125.64

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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.