Home / 8,326.14-12,491.26-2,780.08

Finding the Fourth Proportional to 8,326.14, 12,491.26 and 2,780.08

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Solution

The fourth proportional to 8,326.14, 12,491.26 and 2,780.08 is: 4,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.14 : 12,491.26 = 2,780.08 : x
  2. Step 2: Convert to fraction form
    8,326.14/12,491.26 = 2,780.08/x
  3. Step 3: Cross multiply
    8,326.14x = 12,491.26 × 2,780.08
  4. Step 4: Simplify right side
    8,326.14x = 34,726,702.10
  5. Step 5: Solve for x
    x = 34,726,702.10/8,326.14
  6. Step 6: Final answer
    x = 4,170.80

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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.