Home / 12,432.20-17,156.09-6,766.82

Finding the Fourth Proportional to 12,432.20, 17,156.09 and 6,766.82

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Solution

The fourth proportional to 12,432.20, 17,156.09 and 6,766.82 is: 9,338.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.20 : 17,156.09 = 6,766.82 : x
  2. Step 2: Convert to fraction form
    12,432.20/17,156.09 = 6,766.82/x
  3. Step 3: Cross multiply
    12,432.20x = 17,156.09 × 6,766.82
  4. Step 4: Simplify right side
    12,432.20x = 116,092,104.07
  5. Step 5: Solve for x
    x = 116,092,104.07/12,432.20
  6. Step 6: Final answer
    x = 9,338.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.