Home / 11,248.78-15,517.18-6,769.84

Finding the Fourth Proportional to 11,248.78, 15,517.18 and 6,769.84

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Solution

The fourth proportional to 11,248.78, 15,517.18 and 6,769.84 is: 9,338.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,248.78 : 15,517.18 = 6,769.84 : x
  2. Step 2: Convert to fraction form
    11,248.78/15,517.18 = 6,769.84/x
  3. Step 3: Cross multiply
    11,248.78x = 15,517.18 × 6,769.84
  4. Step 4: Simplify right side
    11,248.78x = 105,048,825.85
  5. Step 5: Solve for x
    x = 105,048,825.85/11,248.78
  6. Step 6: Final answer
    x = 9,338.69

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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.