Home / 8,269.40-12,405.80-2,723.07

Finding the Fourth Proportional to 8,269.40, 12,405.80 and 2,723.07

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Solution

The fourth proportional to 8,269.40, 12,405.80 and 2,723.07 is: 4,085.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269.40 : 12,405.80 = 2,723.07 : x
  2. Step 2: Convert to fraction form
    8,269.40/12,405.80 = 2,723.07/x
  3. Step 3: Cross multiply
    8,269.40x = 12,405.80 × 2,723.07
  4. Step 4: Simplify right side
    8,269.40x = 33,781,915.14
  5. Step 5: Solve for x
    x = 33,781,915.14/8,269.40
  6. Step 6: Final answer
    x = 4,085.17

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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.