Home / 11,585.06-15,987.19-6,279.83

Finding the Fourth Proportional to 11,585.06, 15,987.19 and 6,279.83

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Solution

The fourth proportional to 11,585.06, 15,987.19 and 6,279.83 is: 8,666.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,585.06 : 15,987.19 = 6,279.83 : x
  2. Step 2: Convert to fraction form
    11,585.06/15,987.19 = 6,279.83/x
  3. Step 3: Cross multiply
    11,585.06x = 15,987.19 × 6,279.83
  4. Step 4: Simplify right side
    11,585.06x = 100,396,835.38
  5. Step 5: Solve for x
    x = 100,396,835.38/11,585.06
  6. Step 6: Final answer
    x = 8,666.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.