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Finding the Fourth Proportional to 8,727.71, 12,043.88 and 4,748.83

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Solution

The fourth proportional to 8,727.71, 12,043.88 and 4,748.83 is: 6,553.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,727.71 : 12,043.88 = 4,748.83 : x
  2. Step 2: Convert to fraction form
    8,727.71/12,043.88 = 4,748.83/x
  3. Step 3: Cross multiply
    8,727.71x = 12,043.88 × 4,748.83
  4. Step 4: Simplify right side
    8,727.71x = 57,194,338.66
  5. Step 5: Solve for x
    x = 57,194,338.66/8,727.71
  6. Step 6: Final answer
    x = 6,553.19

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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.