Home / 15,439.88-23,190.82-9,212.04

Finding the Fourth Proportional to 15,439.88, 23,190.82 and 9,212.04

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Solution

The fourth proportional to 15,439.88, 23,190.82 and 9,212.04 is: 13,836.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,439.88 : 23,190.82 = 9,212.04 : x
  2. Step 2: Convert to fraction form
    15,439.88/23,190.82 = 9,212.04/x
  3. Step 3: Cross multiply
    15,439.88x = 23,190.82 × 9,212.04
  4. Step 4: Simplify right side
    15,439.88x = 213,634,738.44
  5. Step 5: Solve for x
    x = 213,634,738.44/15,439.88
  6. Step 6: Final answer
    x = 13,836.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.