Home / 15,989.38-22,065.46-8,819.55

Finding the Fourth Proportional to 15,989.38, 22,065.46 and 8,819.55

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Solution

The fourth proportional to 15,989.38, 22,065.46 and 8,819.55 is: 12,171.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989.38 : 22,065.46 = 8,819.55 : x
  2. Step 2: Convert to fraction form
    15,989.38/22,065.46 = 8,819.55/x
  3. Step 3: Cross multiply
    15,989.38x = 22,065.46 × 8,819.55
  4. Step 4: Simplify right side
    15,989.38x = 194,607,405.69
  5. Step 5: Solve for x
    x = 194,607,405.69/15,989.38
  6. Step 6: Final answer
    x = 12,171.04

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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.