Home / 12,891.82-19,343.25-5,397.14

Finding the Fourth Proportional to 12,891.82, 19,343.25 and 5,397.14

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Solution

The fourth proportional to 12,891.82, 19,343.25 and 5,397.14 is: 8,098.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,891.82 : 19,343.25 = 5,397.14 : x
  2. Step 2: Convert to fraction form
    12,891.82/19,343.25 = 5,397.14/x
  3. Step 3: Cross multiply
    12,891.82x = 19,343.25 × 5,397.14
  4. Step 4: Simplify right side
    12,891.82x = 104,398,135.38
  5. Step 5: Solve for x
    x = 104,398,135.38/12,891.82
  6. Step 6: Final answer
    x = 8,098.01

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1.5x scale

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.