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Finding the Fourth Proportional to 6,659.79, 9,972.60 and 6,462.70

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Solution

The fourth proportional to 6,659.79, 9,972.60 and 6,462.70 is: 9,677.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659.79 : 9,972.60 = 6,462.70 : x
  2. Step 2: Convert to fraction form
    6,659.79/9,972.60 = 6,462.70/x
  3. Step 3: Cross multiply
    6,659.79x = 9,972.60 × 6,462.70
  4. Step 4: Simplify right side
    6,659.79x = 64,449,922.02
  5. Step 5: Solve for x
    x = 64,449,922.02/6,659.79
  6. Step 6: Final answer
    x = 9,677.47

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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.