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Finding the Fourth Proportional to 8,652.24, 12,981.08 and 2,728.88

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Solution

The fourth proportional to 8,652.24, 12,981.08 and 2,728.88 is: 4,094.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652.24 : 12,981.08 = 2,728.88 : x
  2. Step 2: Convert to fraction form
    8,652.24/12,981.08 = 2,728.88/x
  3. Step 3: Cross multiply
    8,652.24x = 12,981.08 × 2,728.88
  4. Step 4: Simplify right side
    8,652.24x = 35,423,809.59
  5. Step 5: Solve for x
    x = 35,423,809.59/8,652.24
  6. Step 6: Final answer
    x = 4,094.18

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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.