Home / 15,972.82-22,042.52-8,900.64

Finding the Fourth Proportional to 15,972.82, 22,042.52 and 8,900.64

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Solution

The fourth proportional to 15,972.82, 22,042.52 and 8,900.64 is: 12,282.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,972.82 : 22,042.52 = 8,900.64 : x
  2. Step 2: Convert to fraction form
    15,972.82/22,042.52 = 8,900.64/x
  3. Step 3: Cross multiply
    15,972.82x = 22,042.52 × 8,900.64
  4. Step 4: Simplify right side
    15,972.82x = 196,192,535.21
  5. Step 5: Solve for x
    x = 196,192,535.21/15,972.82
  6. Step 6: Final answer
    x = 12,282.90

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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.