Home / 8,158.40-12,233.74-3,163.12

Finding the Fourth Proportional to 8,158.40, 12,233.74 and 3,163.12

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Solution

The fourth proportional to 8,158.40, 12,233.74 and 3,163.12 is: 4,743.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.40 : 12,233.74 = 3,163.12 : x
  2. Step 2: Convert to fraction form
    8,158.40/12,233.74 = 3,163.12/x
  3. Step 3: Cross multiply
    8,158.40x = 12,233.74 × 3,163.12
  4. Step 4: Simplify right side
    8,158.40x = 38,696,787.67
  5. Step 5: Solve for x
    x = 38,696,787.67/8,158.40
  6. Step 6: Final answer
    x = 4,743.18

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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.