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Finding the Fourth Proportional to 6,331.56, 9,491.08 and 5,451

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Solution

The fourth proportional to 6,331.56, 9,491.08 and 5,451 is: 8,171.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.56 : 9,491.08 = 5,451 : x
  2. Step 2: Convert to fraction form
    6,331.56/9,491.08 = 5,451/x
  3. Step 3: Cross multiply
    6,331.56x = 9,491.08 × 5,451
  4. Step 4: Simplify right side
    6,331.56x = 51,735,877.08
  5. Step 5: Solve for x
    x = 51,735,877.08/6,331.56
  6. Step 6: Final answer
    x = 8,171.11

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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.