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Finding the Fourth Proportional to 6,542.56, 9,812.76 and 5,439.07

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Solution

The fourth proportional to 6,542.56, 9,812.76 and 5,439.07 is: 8,157.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,542.56 : 9,812.76 = 5,439.07 : x
  2. Step 2: Convert to fraction form
    6,542.56/9,812.76 = 5,439.07/x
  3. Step 3: Cross multiply
    6,542.56x = 9,812.76 × 5,439.07
  4. Step 4: Simplify right side
    6,542.56x = 53,372,288.53
  5. Step 5: Solve for x
    x = 53,372,288.53/6,542.56
  6. Step 6: Final answer
    x = 8,157.71

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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.