Home / 13,515.28-18,650.44-7,546.96

Finding the Fourth Proportional to 13,515.28, 18,650.44 and 7,546.96

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Solution

The fourth proportional to 13,515.28, 18,650.44 and 7,546.96 is: 10,414.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.28 : 18,650.44 = 7,546.96 : x
  2. Step 2: Convert to fraction form
    13,515.28/18,650.44 = 7,546.96/x
  3. Step 3: Cross multiply
    13,515.28x = 18,650.44 × 7,546.96
  4. Step 4: Simplify right side
    13,515.28x = 140,754,124.66
  5. Step 5: Solve for x
    x = 140,754,124.66/13,515.28
  6. Step 6: Final answer
    x = 10,414.44

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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.