Home / 15,517.88-21,410.93-9,144.73

Finding the Fourth Proportional to 15,517.88, 21,410.93 and 9,144.73

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Solution

The fourth proportional to 15,517.88, 21,410.93 and 9,144.73 is: 12,617.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.88 : 21,410.93 = 9,144.73 : x
  2. Step 2: Convert to fraction form
    15,517.88/21,410.93 = 9,144.73/x
  3. Step 3: Cross multiply
    15,517.88x = 21,410.93 × 9,144.73
  4. Step 4: Simplify right side
    15,517.88x = 195,797,223.52
  5. Step 5: Solve for x
    x = 195,797,223.52/15,517.88
  6. Step 6: Final answer
    x = 12,617.53

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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.