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Finding the Fourth Proportional to 13,889.92, 20,834.88 and 6,098.80

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Solution

The fourth proportional to 13,889.92, 20,834.88 and 6,098.80 is: 9,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.92 : 20,834.88 = 6,098.80 : x
  2. Step 2: Convert to fraction form
    13,889.92/20,834.88 = 6,098.80/x
  3. Step 3: Cross multiply
    13,889.92x = 20,834.88 × 6,098.80
  4. Step 4: Simplify right side
    13,889.92x = 127,067,766.14
  5. Step 5: Solve for x
    x = 127,067,766.14/13,889.92
  6. Step 6: Final answer
    x = 9,148.20

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1.5x scale

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.