Home / 15,517.37-21,407.39-9,229.75

Finding the Fourth Proportional to 15,517.37, 21,407.39 and 9,229.75

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Solution

The fourth proportional to 15,517.37, 21,407.39 and 9,229.75 is: 12,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.37 : 21,407.39 = 9,229.75 : x
  2. Step 2: Convert to fraction form
    15,517.37/21,407.39 = 9,229.75/x
  3. Step 3: Cross multiply
    15,517.37x = 21,407.39 × 9,229.75
  4. Step 4: Simplify right side
    15,517.37x = 197,584,792.80
  5. Step 5: Solve for x
    x = 197,584,792.80/15,517.37
  6. Step 6: Final answer
    x = 12,733.13

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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.