Home / 13,515.52-18,649.29-7,546.90

Finding the Fourth Proportional to 13,515.52, 18,649.29 and 7,546.90

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Solution

The fourth proportional to 13,515.52, 18,649.29 and 7,546.90 is: 10,413.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.52 : 18,649.29 = 7,546.90 : x
  2. Step 2: Convert to fraction form
    13,515.52/18,649.29 = 7,546.90/x
  3. Step 3: Cross multiply
    13,515.52x = 18,649.29 × 7,546.90
  4. Step 4: Simplify right side
    13,515.52x = 140,744,326.70
  5. Step 5: Solve for x
    x = 140,744,326.70/13,515.52
  6. Step 6: Final answer
    x = 10,413.53

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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.