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Finding the Fourth Proportional to 12,592.84, 18,882.24 and 8,648.68

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Solution

The fourth proportional to 12,592.84, 18,882.24 and 8,648.68 is: 12,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,592.84 : 18,882.24 = 8,648.68 : x
  2. Step 2: Convert to fraction form
    12,592.84/18,882.24 = 8,648.68/x
  3. Step 3: Cross multiply
    12,592.84x = 18,882.24 × 8,648.68
  4. Step 4: Simplify right side
    12,592.84x = 163,306,451.44
  5. Step 5: Solve for x
    x = 163,306,451.44/12,592.84
  6. Step 6: Final answer
    x = 12,968.20

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1.5x scale

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.