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Finding the Fourth Proportional to 10,255.32, 15,352.92 and 7,799.88

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Solution

The fourth proportional to 10,255.32, 15,352.92 and 7,799.88 is: 11,676.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.32 : 15,352.92 = 7,799.88 : x
  2. Step 2: Convert to fraction form
    10,255.32/15,352.92 = 7,799.88/x
  3. Step 3: Cross multiply
    10,255.32x = 15,352.92 × 7,799.88
  4. Step 4: Simplify right side
    10,255.32x = 119,750,933.65
  5. Step 5: Solve for x
    x = 119,750,933.65/10,255.32
  6. Step 6: Final answer
    x = 11,676.96

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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.