Home / 12,691.68-19,044.48-5,294.64

Finding the Fourth Proportional to 12,691.68, 19,044.48 and 5,294.64

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Solution

The fourth proportional to 12,691.68, 19,044.48 and 5,294.64 is: 7,944.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691.68 : 19,044.48 = 5,294.64 : x
  2. Step 2: Convert to fraction form
    12,691.68/19,044.48 = 5,294.64/x
  3. Step 3: Cross multiply
    12,691.68x = 19,044.48 × 5,294.64
  4. Step 4: Simplify right side
    12,691.68x = 100,833,665.59
  5. Step 5: Solve for x
    x = 100,833,665.59/12,691.68
  6. Step 6: Final answer
    x = 7,944.86

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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.