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Finding the Fourth Proportional to 17,528.80, 26,280.24 and 8,284

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Solution

The fourth proportional to 17,528.80, 26,280.24 and 8,284 is: 12,419.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,528.80 : 26,280.24 = 8,284 : x
  2. Step 2: Convert to fraction form
    17,528.80/26,280.24 = 8,284/x
  3. Step 3: Cross multiply
    17,528.80x = 26,280.24 × 8,284
  4. Step 4: Simplify right side
    17,528.80x = 217,705,508.16
  5. Step 5: Solve for x
    x = 217,705,508.16/17,528.80
  6. Step 6: Final answer
    x = 12,419.88

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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.