Home / 16,221.16-22,351.98-11,965.48

Finding the Fourth Proportional to 16,221.16, 22,351.98 and 11,965.48

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Solution

The fourth proportional to 16,221.16, 22,351.98 and 11,965.48 is: 16,487.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,221.16 : 22,351.98 = 11,965.48 : x
  2. Step 2: Convert to fraction form
    16,221.16/22,351.98 = 11,965.48/x
  3. Step 3: Cross multiply
    16,221.16x = 22,351.98 × 11,965.48
  4. Step 4: Simplify right side
    16,221.16x = 267,452,169.65
  5. Step 5: Solve for x
    x = 267,452,169.65/16,221.16
  6. Step 6: Final answer
    x = 16,487.86

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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.