Home / 8,231.40-12,347.91-3,036.06

Finding the Fourth Proportional to 8,231.40, 12,347.91 and 3,036.06

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Solution

The fourth proportional to 8,231.40, 12,347.91 and 3,036.06 is: 4,554.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.40 : 12,347.91 = 3,036.06 : x
  2. Step 2: Convert to fraction form
    8,231.40/12,347.91 = 3,036.06/x
  3. Step 3: Cross multiply
    8,231.40x = 12,347.91 × 3,036.06
  4. Step 4: Simplify right side
    8,231.40x = 37,488,995.63
  5. Step 5: Solve for x
    x = 37,488,995.63/8,231.40
  6. Step 6: Final answer
    x = 4,554.39

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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.