Home / 12,691.28-19,035.96-3,926.24

Finding the Fourth Proportional to 12,691.28, 19,035.96 and 3,926.24

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Solution

The fourth proportional to 12,691.28, 19,035.96 and 3,926.24 is: 5,889.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691.28 : 19,035.96 = 3,926.24 : x
  2. Step 2: Convert to fraction form
    12,691.28/19,035.96 = 3,926.24/x
  3. Step 3: Cross multiply
    12,691.28x = 19,035.96 × 3,926.24
  4. Step 4: Simplify right side
    12,691.28x = 74,739,747.59
  5. Step 5: Solve for x
    x = 74,739,747.59/12,691.28
  6. Step 6: Final answer
    x = 5,889.06

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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.