Home / 8,002.46-12,002.31-3,618.90

Finding the Fourth Proportional to 8,002.46, 12,002.31 and 3,618.90

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Solution

The fourth proportional to 8,002.46, 12,002.31 and 3,618.90 is: 5,427.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,002.46 : 12,002.31 = 3,618.90 : x
  2. Step 2: Convert to fraction form
    8,002.46/12,002.31 = 3,618.90/x
  3. Step 3: Cross multiply
    8,002.46x = 12,002.31 × 3,618.90
  4. Step 4: Simplify right side
    8,002.46x = 43,435,159.66
  5. Step 5: Solve for x
    x = 43,435,159.66/8,002.46
  6. Step 6: Final answer
    x = 5,427.72

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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.