Home / 11,292.40-15,589.02-7,517.80

Finding the Fourth Proportional to 11,292.40, 15,589.02 and 7,517.80

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Solution

The fourth proportional to 11,292.40, 15,589.02 and 7,517.80 is: 10,378.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,292.40 : 15,589.02 = 7,517.80 : x
  2. Step 2: Convert to fraction form
    11,292.40/15,589.02 = 7,517.80/x
  3. Step 3: Cross multiply
    11,292.40x = 15,589.02 × 7,517.80
  4. Step 4: Simplify right side
    11,292.40x = 117,195,134.56
  5. Step 5: Solve for x
    x = 117,195,134.56/11,292.40
  6. Step 6: Final answer
    x = 10,378.23

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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.