Home / 11,540.41-15,915.21-7,560.07

Finding the Fourth Proportional to 11,540.41, 15,915.21 and 7,560.07

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Solution

The fourth proportional to 11,540.41, 15,915.21 and 7,560.07 is: 10,425.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,540.41 : 15,915.21 = 7,560.07 : x
  2. Step 2: Convert to fraction form
    11,540.41/15,915.21 = 7,560.07/x
  3. Step 3: Cross multiply
    11,540.41x = 15,915.21 × 7,560.07
  4. Step 4: Simplify right side
    11,540.41x = 120,320,101.66
  5. Step 5: Solve for x
    x = 120,320,101.66/11,540.41
  6. Step 6: Final answer
    x = 10,425.98

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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.