Home / 8,660.31-12,989.04-3,728.62

Finding the Fourth Proportional to 8,660.31, 12,989.04 and 3,728.62

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Solution

The fourth proportional to 8,660.31, 12,989.04 and 3,728.62 is: 5,592.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.31 : 12,989.04 = 3,728.62 : x
  2. Step 2: Convert to fraction form
    8,660.31/12,989.04 = 3,728.62/x
  3. Step 3: Cross multiply
    8,660.31x = 12,989.04 × 3,728.62
  4. Step 4: Simplify right side
    8,660.31x = 48,431,194.32
  5. Step 5: Solve for x
    x = 48,431,194.32/8,660.31
  6. Step 6: Final answer
    x = 5,592.32

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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.