Home / 12,891.06-19,298.30-7,029.90

Finding the Fourth Proportional to 12,891.06, 19,298.30 and 7,029.90

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Solution

The fourth proportional to 12,891.06, 19,298.30 and 7,029.90 is: 10,523.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,891.06 : 19,298.30 = 7,029.90 : x
  2. Step 2: Convert to fraction form
    12,891.06/19,298.30 = 7,029.90/x
  3. Step 3: Cross multiply
    12,891.06x = 19,298.30 × 7,029.90
  4. Step 4: Simplify right side
    12,891.06x = 135,665,084.02
  5. Step 5: Solve for x
    x = 135,665,084.02/12,891.06
  6. Step 6: Final answer
    x = 10,523.97

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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.