Home / 12,349.62-18,531.18-8,132.76

Finding the Fourth Proportional to 12,349.62, 18,531.18 and 8,132.76

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Solution

The fourth proportional to 12,349.62, 18,531.18 and 8,132.76 is: 12,203.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,349.62 : 18,531.18 = 8,132.76 : x
  2. Step 2: Convert to fraction form
    12,349.62/18,531.18 = 8,132.76/x
  3. Step 3: Cross multiply
    12,349.62x = 18,531.18 × 8,132.76
  4. Step 4: Simplify right side
    12,349.62x = 150,709,639.46
  5. Step 5: Solve for x
    x = 150,709,639.46/12,349.62
  6. Step 6: Final answer
    x = 12,203.59

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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.