Home / 8,723.12-13,084.28-2,149.36

Finding the Fourth Proportional to 8,723.12, 13,084.28 and 2,149.36

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Solution

The fourth proportional to 8,723.12, 13,084.28 and 2,149.36 is: 3,223.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.12 : 13,084.28 = 2,149.36 : x
  2. Step 2: Convert to fraction form
    8,723.12/13,084.28 = 2,149.36/x
  3. Step 3: Cross multiply
    8,723.12x = 13,084.28 × 2,149.36
  4. Step 4: Simplify right side
    8,723.12x = 28,122,828.06
  5. Step 5: Solve for x
    x = 28,122,828.06/8,723.12
  6. Step 6: Final answer
    x = 3,223.94

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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.