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Finding the Fourth Proportional to 9,251.48, 12,763.24 and 6,728.08

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Solution

The fourth proportional to 9,251.48, 12,763.24 and 6,728.08 is: 9,281.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,251.48 : 12,763.24 = 6,728.08 : x
  2. Step 2: Convert to fraction form
    9,251.48/12,763.24 = 6,728.08/x
  3. Step 3: Cross multiply
    9,251.48x = 12,763.24 × 6,728.08
  4. Step 4: Simplify right side
    9,251.48x = 85,872,099.78
  5. Step 5: Solve for x
    x = 85,872,099.78/9,251.48
  6. Step 6: Final answer
    x = 9,281.99

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1.5x scale

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.