Home / 12,581.46-18,871.56-3,817.08

Finding the Fourth Proportional to 12,581.46, 18,871.56 and 3,817.08

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Solution

The fourth proportional to 12,581.46, 18,871.56 and 3,817.08 is: 5,725.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.46 : 18,871.56 = 3,817.08 : x
  2. Step 2: Convert to fraction form
    12,581.46/18,871.56 = 3,817.08/x
  3. Step 3: Cross multiply
    12,581.46x = 18,871.56 × 3,817.08
  4. Step 4: Simplify right side
    12,581.46x = 72,034,254.24
  5. Step 5: Solve for x
    x = 72,034,254.24/12,581.46
  6. Step 6: Final answer
    x = 5,725.43

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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.