Home / 11,294.47-15,588.97-7,517.78

Finding the Fourth Proportional to 11,294.47, 15,588.97 and 7,517.78

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Solution

The fourth proportional to 11,294.47, 15,588.97 and 7,517.78 is: 10,376.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,294.47 : 15,588.97 = 7,517.78 : x
  2. Step 2: Convert to fraction form
    11,294.47/15,588.97 = 7,517.78/x
  3. Step 3: Cross multiply
    11,294.47x = 15,588.97 × 7,517.78
  4. Step 4: Simplify right side
    11,294.47x = 117,194,409.30
  5. Step 5: Solve for x
    x = 117,194,409.30/11,294.47
  6. Step 6: Final answer
    x = 10,376.27

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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.