Home / 12,691.01-19,038.37-3,926.61

Finding the Fourth Proportional to 12,691.01, 19,038.37 and 3,926.61

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Solution

The fourth proportional to 12,691.01, 19,038.37 and 3,926.61 is: 5,890.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691.01 : 19,038.37 = 3,926.61 : x
  2. Step 2: Convert to fraction form
    12,691.01/19,038.37 = 3,926.61/x
  3. Step 3: Cross multiply
    12,691.01x = 19,038.37 × 3,926.61
  4. Step 4: Simplify right side
    12,691.01x = 74,756,234.39
  5. Step 5: Solve for x
    x = 74,756,234.39/12,691.01
  6. Step 6: Final answer
    x = 5,890.49

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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.