Home / 15,019.29-20,725.74-8,304.66

Finding the Fourth Proportional to 15,019.29, 20,725.74 and 8,304.66

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Solution

The fourth proportional to 15,019.29, 20,725.74 and 8,304.66 is: 11,459.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,019.29 : 20,725.74 = 8,304.66 : x
  2. Step 2: Convert to fraction form
    15,019.29/20,725.74 = 8,304.66/x
  3. Step 3: Cross multiply
    15,019.29x = 20,725.74 × 8,304.66
  4. Step 4: Simplify right side
    15,019.29x = 172,120,223.95
  5. Step 5: Solve for x
    x = 172,120,223.95/15,019.29
  6. Step 6: Final answer
    x = 11,459.94

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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.