Home / 15,512.96-21,419.16-9,552.80

Finding the Fourth Proportional to 15,512.96, 21,419.16 and 9,552.80

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Solution

The fourth proportional to 15,512.96, 21,419.16 and 9,552.80 is: 13,189.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.96 : 21,419.16 = 9,552.80 : x
  2. Step 2: Convert to fraction form
    15,512.96/21,419.16 = 9,552.80/x
  3. Step 3: Cross multiply
    15,512.96x = 21,419.16 × 9,552.80
  4. Step 4: Simplify right side
    15,512.96x = 204,612,951.65
  5. Step 5: Solve for x
    x = 204,612,951.65/15,512.96
  6. Step 6: Final answer
    x = 13,189.81

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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.