Home / 12,862.29-19,297.09-4,097.88

Finding the Fourth Proportional to 12,862.29, 19,297.09 and 4,097.88

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Solution

The fourth proportional to 12,862.29, 19,297.09 and 4,097.88 is: 6,147.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862.29 : 19,297.09 = 4,097.88 : x
  2. Step 2: Convert to fraction form
    12,862.29/19,297.09 = 4,097.88/x
  3. Step 3: Cross multiply
    12,862.29x = 19,297.09 × 4,097.88
  4. Step 4: Simplify right side
    12,862.29x = 79,077,138.68
  5. Step 5: Solve for x
    x = 79,077,138.68/12,862.29
  6. Step 6: Final answer
    x = 6,147.98

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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.