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Finding the Fourth Proportional to 10,087.92, 15,144.48 and 6,815.52

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Solution

The fourth proportional to 10,087.92, 15,144.48 and 6,815.52 is: 10,231.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.92 : 15,144.48 = 6,815.52 : x
  2. Step 2: Convert to fraction form
    10,087.92/15,144.48 = 6,815.52/x
  3. Step 3: Cross multiply
    10,087.92x = 15,144.48 × 6,815.52
  4. Step 4: Simplify right side
    10,087.92x = 103,217,506.33
  5. Step 5: Solve for x
    x = 103,217,506.33/10,087.92
  6. Step 6: Final answer
    x = 10,231.79

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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.