Home / 15,874.41-21,902.25-12,506.79

Finding the Fourth Proportional to 15,874.41, 21,902.25 and 12,506.79

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Solution

The fourth proportional to 15,874.41, 21,902.25 and 12,506.79 is: 17,255.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,874.41 : 21,902.25 = 12,506.79 : x
  2. Step 2: Convert to fraction form
    15,874.41/21,902.25 = 12,506.79/x
  3. Step 3: Cross multiply
    15,874.41x = 21,902.25 × 12,506.79
  4. Step 4: Simplify right side
    15,874.41x = 273,926,841.28
  5. Step 5: Solve for x
    x = 273,926,841.28/15,874.41
  6. Step 6: Final answer
    x = 17,255.88

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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.