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Finding the Fourth Proportional to 8,752.67, 12,078.69 and 4,773.80

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Solution

The fourth proportional to 8,752.67, 12,078.69 and 4,773.80 is: 6,587.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.67 : 12,078.69 = 4,773.80 : x
  2. Step 2: Convert to fraction form
    8,752.67/12,078.69 = 4,773.80/x
  3. Step 3: Cross multiply
    8,752.67x = 12,078.69 × 4,773.80
  4. Step 4: Simplify right side
    8,752.67x = 57,661,189.93
  5. Step 5: Solve for x
    x = 57,661,189.93/8,752.67
  6. Step 6: Final answer
    x = 6,587.84

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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.