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Finding the Fourth Proportional to 7,672.68, 11,500.06 and 3,507.88

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Solution

The fourth proportional to 7,672.68, 11,500.06 and 3,507.88 is: 5,257.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.68 : 11,500.06 = 3,507.88 : x
  2. Step 2: Convert to fraction form
    7,672.68/11,500.06 = 3,507.88/x
  3. Step 3: Cross multiply
    7,672.68x = 11,500.06 × 3,507.88
  4. Step 4: Simplify right side
    7,672.68x = 40,340,830.47
  5. Step 5: Solve for x
    x = 40,340,830.47/7,672.68
  6. Step 6: Final answer
    x = 5,257.72

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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.