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Finding the Fourth Proportional to 8,474.68, 12,716.34 and 7,256.44

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Solution

The fourth proportional to 8,474.68, 12,716.34 and 7,256.44 is: 10,888.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.68 : 12,716.34 = 7,256.44 : x
  2. Step 2: Convert to fraction form
    8,474.68/12,716.34 = 7,256.44/x
  3. Step 3: Cross multiply
    8,474.68x = 12,716.34 × 7,256.44
  4. Step 4: Simplify right side
    8,474.68x = 92,275,358.23
  5. Step 5: Solve for x
    x = 92,275,358.23/8,474.68
  6. Step 6: Final answer
    x = 10,888.36

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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.