Home / 15,972.76-22,042.36-8,899.12

Finding the Fourth Proportional to 15,972.76, 22,042.36 and 8,899.12

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Solution

The fourth proportional to 15,972.76, 22,042.36 and 8,899.12 is: 12,280.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,972.76 : 22,042.36 = 8,899.12 : x
  2. Step 2: Convert to fraction form
    15,972.76/22,042.36 = 8,899.12/x
  3. Step 3: Cross multiply
    15,972.76x = 22,042.36 × 8,899.12
  4. Step 4: Simplify right side
    15,972.76x = 196,157,606.72
  5. Step 5: Solve for x
    x = 196,157,606.72/15,972.76
  6. Step 6: Final answer
    x = 12,280.76

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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.