Home / 12,573.18-18,857.75-4,253.04

Finding the Fourth Proportional to 12,573.18, 18,857.75 and 4,253.04

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Solution

The fourth proportional to 12,573.18, 18,857.75 and 4,253.04 is: 6,378.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.18 : 18,857.75 = 4,253.04 : x
  2. Step 2: Convert to fraction form
    12,573.18/18,857.75 = 4,253.04/x
  3. Step 3: Cross multiply
    12,573.18x = 18,857.75 × 4,253.04
  4. Step 4: Simplify right side
    12,573.18x = 80,202,743.79
  5. Step 5: Solve for x
    x = 80,202,743.79/12,573.18
  6. Step 6: Final answer
    x = 6,378.88

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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.