Home / 15,972.50-22,042.46-8,898.78

Finding the Fourth Proportional to 15,972.50, 22,042.46 and 8,898.78

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Solution

The fourth proportional to 15,972.50, 22,042.46 and 8,898.78 is: 12,280.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,972.50 : 22,042.46 = 8,898.78 : x
  2. Step 2: Convert to fraction form
    15,972.50/22,042.46 = 8,898.78/x
  3. Step 3: Cross multiply
    15,972.50x = 22,042.46 × 8,898.78
  4. Step 4: Simplify right side
    15,972.50x = 196,151,002.20
  5. Step 5: Solve for x
    x = 196,151,002.20/15,972.50
  6. Step 6: Final answer
    x = 12,280.54

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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.