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Finding the Fourth Proportional to 8,763, 12,094 and 4,987.08

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Solution

The fourth proportional to 8,763, 12,094 and 4,987.08 is: 6,882.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763 : 12,094 = 4,987.08 : x
  2. Step 2: Convert to fraction form
    8,763/12,094 = 4,987.08/x
  3. Step 3: Cross multiply
    8,763x = 12,094 × 4,987.08
  4. Step 4: Simplify right side
    8,763x = 60,313,775.76
  5. Step 5: Solve for x
    x = 60,313,775.76/8,763
  6. Step 6: Final answer
    x = 6,882.78

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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.