Home / 11,140.74-15,374.24-6,105.15

Finding the Fourth Proportional to 11,140.74, 15,374.24 and 6,105.15

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Solution

The fourth proportional to 11,140.74, 15,374.24 and 6,105.15 is: 8,425.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.74 : 15,374.24 = 6,105.15 : x
  2. Step 2: Convert to fraction form
    11,140.74/15,374.24 = 6,105.15/x
  3. Step 3: Cross multiply
    11,140.74x = 15,374.24 × 6,105.15
  4. Step 4: Simplify right side
    11,140.74x = 93,861,996.90
  5. Step 5: Solve for x
    x = 93,861,996.90/11,140.74
  6. Step 6: Final answer
    x = 8,425.11

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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.