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Finding the Fourth Proportional to 8,408.68, 12,614.64 and 4,715.08

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Solution

The fourth proportional to 8,408.68, 12,614.64 and 4,715.08 is: 7,073.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.68 : 12,614.64 = 4,715.08 : x
  2. Step 2: Convert to fraction form
    8,408.68/12,614.64 = 4,715.08/x
  3. Step 3: Cross multiply
    8,408.68x = 12,614.64 × 4,715.08
  4. Step 4: Simplify right side
    8,408.68x = 59,479,036.77
  5. Step 5: Solve for x
    x = 59,479,036.77/8,408.68
  6. Step 6: Final answer
    x = 7,073.53

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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.