Home / 12,691.03-19,032.37-4,370.86

Finding the Fourth Proportional to 12,691.03, 19,032.37 and 4,370.86

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Solution

The fourth proportional to 12,691.03, 19,032.37 and 4,370.86 is: 6,554.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691.03 : 19,032.37 = 4,370.86 : x
  2. Step 2: Convert to fraction form
    12,691.03/19,032.37 = 4,370.86/x
  3. Step 3: Cross multiply
    12,691.03x = 19,032.37 × 4,370.86
  4. Step 4: Simplify right side
    12,691.03x = 83,187,837.60
  5. Step 5: Solve for x
    x = 83,187,837.60/12,691.03
  6. Step 6: Final answer
    x = 6,554.85

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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.