Home / 12,326.68-17,030.12-11,719.78

Finding the Fourth Proportional to 12,326.68, 17,030.12 and 11,719.78

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Solution

The fourth proportional to 12,326.68, 17,030.12 and 11,719.78 is: 16,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326.68 : 17,030.12 = 11,719.78 : x
  2. Step 2: Convert to fraction form
    12,326.68/17,030.12 = 11,719.78/x
  3. Step 3: Cross multiply
    12,326.68x = 17,030.12 × 11,719.78
  4. Step 4: Simplify right side
    12,326.68x = 199,589,259.77
  5. Step 5: Solve for x
    x = 199,589,259.77/12,326.68
  6. Step 6: Final answer
    x = 16,191.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.