Home / 15,869.93-23,819.17-8,480.70

Finding the Fourth Proportional to 15,869.93, 23,819.17 and 8,480.70

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Solution

The fourth proportional to 15,869.93, 23,819.17 and 8,480.70 is: 12,728.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.93 : 23,819.17 = 8,480.70 : x
  2. Step 2: Convert to fraction form
    15,869.93/23,819.17 = 8,480.70/x
  3. Step 3: Cross multiply
    15,869.93x = 23,819.17 × 8,480.70
  4. Step 4: Simplify right side
    15,869.93x = 202,003,192.62
  5. Step 5: Solve for x
    x = 202,003,192.62/15,869.93
  6. Step 6: Final answer
    x = 12,728.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.