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Finding the Fourth Proportional to 6,660.87, 9,230.87 and 6,566.91

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Solution

The fourth proportional to 6,660.87, 9,230.87 and 6,566.91 is: 9,100.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.87 : 9,230.87 = 6,566.91 : x
  2. Step 2: Convert to fraction form
    6,660.87/9,230.87 = 6,566.91/x
  3. Step 3: Cross multiply
    6,660.87x = 9,230.87 × 6,566.91
  4. Step 4: Simplify right side
    6,660.87x = 60,618,259.68
  5. Step 5: Solve for x
    x = 60,618,259.68/6,660.87
  6. Step 6: Final answer
    x = 9,100.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.