Home / 15,972.88-22,042.92-8,899.96

Finding the Fourth Proportional to 15,972.88, 22,042.92 and 8,899.96

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Solution

The fourth proportional to 15,972.88, 22,042.92 and 8,899.96 is: 12,282.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,972.88 : 22,042.92 = 8,899.96 : x
  2. Step 2: Convert to fraction form
    15,972.88/22,042.92 = 8,899.96/x
  3. Step 3: Cross multiply
    15,972.88x = 22,042.92 × 8,899.96
  4. Step 4: Simplify right side
    15,972.88x = 196,181,106.28
  5. Step 5: Solve for x
    x = 196,181,106.28/15,972.88
  6. Step 6: Final answer
    x = 12,282.14

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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.