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Finding the Fourth Proportional to 19,331.84, 28,997.84 and 6,849.12

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Solution

The fourth proportional to 19,331.84, 28,997.84 and 6,849.12 is: 10,273.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331.84 : 28,997.84 = 6,849.12 : x
  2. Step 2: Convert to fraction form
    19,331.84/28,997.84 = 6,849.12/x
  3. Step 3: Cross multiply
    19,331.84x = 28,997.84 × 6,849.12
  4. Step 4: Simplify right side
    19,331.84x = 198,609,685.90
  5. Step 5: Solve for x
    x = 198,609,685.90/19,331.84
  6. Step 6: Final answer
    x = 10,273.71

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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.