Home / 11,169.79-15,414.67-6,454.07

Finding the Fourth Proportional to 11,169.79, 15,414.67 and 6,454.07

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Solution

The fourth proportional to 11,169.79, 15,414.67 and 6,454.07 is: 8,906.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,169.79 : 15,414.67 = 6,454.07 : x
  2. Step 2: Convert to fraction form
    11,169.79/15,414.67 = 6,454.07/x
  3. Step 3: Cross multiply
    11,169.79x = 15,414.67 × 6,454.07
  4. Step 4: Simplify right side
    11,169.79x = 99,487,311.70
  5. Step 5: Solve for x
    x = 99,487,311.70/11,169.79
  6. Step 6: Final answer
    x = 8,906.82

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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.