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Finding the Fourth Proportional to 8,716.72, 12,029.20 and 4,737.83

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Solution

The fourth proportional to 8,716.72, 12,029.20 and 4,737.83 is: 6,538.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.72 : 12,029.20 = 4,737.83 : x
  2. Step 2: Convert to fraction form
    8,716.72/12,029.20 = 4,737.83/x
  3. Step 3: Cross multiply
    8,716.72x = 12,029.20 × 4,737.83
  4. Step 4: Simplify right side
    8,716.72x = 56,992,316.94
  5. Step 5: Solve for x
    x = 56,992,316.94/8,716.72
  6. Step 6: Final answer
    x = 6,538.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.