Home / 8,862.15-13,288.56-3,929.65

Finding the Fourth Proportional to 8,862.15, 13,288.56 and 3,929.65

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Solution

The fourth proportional to 8,862.15, 13,288.56 and 3,929.65 is: 5,892.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.15 : 13,288.56 = 3,929.65 : x
  2. Step 2: Convert to fraction form
    8,862.15/13,288.56 = 3,929.65/x
  3. Step 3: Cross multiply
    8,862.15x = 13,288.56 × 3,929.65
  4. Step 4: Simplify right side
    8,862.15x = 52,219,389.80
  5. Step 5: Solve for x
    x = 52,219,389.80/8,862.15
  6. Step 6: Final answer
    x = 5,892.41

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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.