Home / 8,254.29-12,381.33-3,868.65

Finding the Fourth Proportional to 8,254.29, 12,381.33 and 3,868.65

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Solution

The fourth proportional to 8,254.29, 12,381.33 and 3,868.65 is: 5,802.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.29 : 12,381.33 = 3,868.65 : x
  2. Step 2: Convert to fraction form
    8,254.29/12,381.33 = 3,868.65/x
  3. Step 3: Cross multiply
    8,254.29x = 12,381.33 × 3,868.65
  4. Step 4: Simplify right side
    8,254.29x = 47,898,970.40
  5. Step 5: Solve for x
    x = 47,898,970.40/8,254.29
  6. Step 6: Final answer
    x = 5,802.92

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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.