Home / 12,871.27-19,302.79-4,104.13

Finding the Fourth Proportional to 12,871.27, 19,302.79 and 4,104.13

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Solution

The fourth proportional to 12,871.27, 19,302.79 and 4,104.13 is: 6,154.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871.27 : 19,302.79 = 4,104.13 : x
  2. Step 2: Convert to fraction form
    12,871.27/19,302.79 = 4,104.13/x
  3. Step 3: Cross multiply
    12,871.27x = 19,302.79 × 4,104.13
  4. Step 4: Simplify right side
    12,871.27x = 79,221,159.52
  5. Step 5: Solve for x
    x = 79,221,159.52/12,871.27
  6. Step 6: Final answer
    x = 6,154.88

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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.