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Finding the Fourth Proportional to 8,476.77, 12,715.38 and 7,236.35

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Solution

The fourth proportional to 8,476.77, 12,715.38 and 7,236.35 is: 10,854.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,476.77 : 12,715.38 = 7,236.35 : x
  2. Step 2: Convert to fraction form
    8,476.77/12,715.38 = 7,236.35/x
  3. Step 3: Cross multiply
    8,476.77x = 12,715.38 × 7,236.35
  4. Step 4: Simplify right side
    8,476.77x = 92,012,876.49
  5. Step 5: Solve for x
    x = 92,012,876.49/8,476.77
  6. Step 6: Final answer
    x = 10,854.71

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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.