Home / 11,143.40-15,377.24-6,106.62

Finding the Fourth Proportional to 11,143.40, 15,377.24 and 6,106.62

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Solution

The fourth proportional to 11,143.40, 15,377.24 and 6,106.62 is: 8,426.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.40 : 15,377.24 = 6,106.62 : x
  2. Step 2: Convert to fraction form
    11,143.40/15,377.24 = 6,106.62/x
  3. Step 3: Cross multiply
    11,143.40x = 15,377.24 × 6,106.62
  4. Step 4: Simplify right side
    11,143.40x = 93,902,961.33
  5. Step 5: Solve for x
    x = 93,902,961.33/11,143.40
  6. Step 6: Final answer
    x = 8,426.78

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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.