Home / 12,691.83-19,037.75-3,926.55

Finding the Fourth Proportional to 12,691.83, 19,037.75 and 3,926.55

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Solution

The fourth proportional to 12,691.83, 19,037.75 and 3,926.55 is: 5,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691.83 : 19,037.75 = 3,926.55 : x
  2. Step 2: Convert to fraction form
    12,691.83/19,037.75 = 3,926.55/x
  3. Step 3: Cross multiply
    12,691.83x = 19,037.75 × 3,926.55
  4. Step 4: Simplify right side
    12,691.83x = 74,752,677.26
  5. Step 5: Solve for x
    x = 74,752,677.26/12,691.83
  6. Step 6: Final answer
    x = 5,889.83

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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.