Home / 10,640.90-15,955.35-4,067.30

Finding the Fourth Proportional to 10,640.90, 15,955.35 and 4,067.30

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Solution

The fourth proportional to 10,640.90, 15,955.35 and 4,067.30 is: 6,098.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.90 : 15,955.35 = 4,067.30 : x
  2. Step 2: Convert to fraction form
    10,640.90/15,955.35 = 4,067.30/x
  3. Step 3: Cross multiply
    10,640.90x = 15,955.35 × 4,067.30
  4. Step 4: Simplify right side
    10,640.90x = 64,895,195.06
  5. Step 5: Solve for x
    x = 64,895,195.06/10,640.90
  6. Step 6: Final answer
    x = 6,098.66

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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.