Home / 15,019.33-20,725.79-8,304.43

Finding the Fourth Proportional to 15,019.33, 20,725.79 and 8,304.43

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Solution

The fourth proportional to 15,019.33, 20,725.79 and 8,304.43 is: 11,459.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,019.33 : 20,725.79 = 8,304.43 : x
  2. Step 2: Convert to fraction form
    15,019.33/20,725.79 = 8,304.43/x
  3. Step 3: Cross multiply
    15,019.33x = 20,725.79 × 8,304.43
  4. Step 4: Simplify right side
    15,019.33x = 172,115,830.73
  5. Step 5: Solve for x
    x = 172,115,830.73/15,019.33
  6. Step 6: Final answer
    x = 11,459.62

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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.