Home / 12,887.62-19,331.42-3,527.72

Finding the Fourth Proportional to 12,887.62, 19,331.42 and 3,527.72

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Solution

The fourth proportional to 12,887.62, 19,331.42 and 3,527.72 is: 5,291.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.62 : 19,331.42 = 3,527.72 : x
  2. Step 2: Convert to fraction form
    12,887.62/19,331.42 = 3,527.72/x
  3. Step 3: Cross multiply
    12,887.62x = 19,331.42 × 3,527.72
  4. Step 4: Simplify right side
    12,887.62x = 68,195,795.16
  5. Step 5: Solve for x
    x = 68,195,795.16/12,887.62
  6. Step 6: Final answer
    x = 5,291.58

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Similar ratio
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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.