Home / 8,279.25-12,420.23-2,732.93

Finding the Fourth Proportional to 8,279.25, 12,420.23 and 2,732.93

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Solution

The fourth proportional to 8,279.25, 12,420.23 and 2,732.93 is: 4,099.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.25 : 12,420.23 = 2,732.93 : x
  2. Step 2: Convert to fraction form
    8,279.25/12,420.23 = 2,732.93/x
  3. Step 3: Cross multiply
    8,279.25x = 12,420.23 × 2,732.93
  4. Step 4: Simplify right side
    8,279.25x = 33,943,619.17
  5. Step 5: Solve for x
    x = 33,943,619.17/8,279.25
  6. Step 6: Final answer
    x = 4,099.84

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1.5x scale

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.