Home / 10,128.26-13,974.75-5,876.85

Finding the Fourth Proportional to 10,128.26, 13,974.75 and 5,876.85

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Solution

The fourth proportional to 10,128.26, 13,974.75 and 5,876.85 is: 8,108.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.26 : 13,974.75 = 5,876.85 : x
  2. Step 2: Convert to fraction form
    10,128.26/13,974.75 = 5,876.85/x
  3. Step 3: Cross multiply
    10,128.26x = 13,974.75 × 5,876.85
  4. Step 4: Simplify right side
    10,128.26x = 82,127,509.54
  5. Step 5: Solve for x
    x = 82,127,509.54/10,128.26
  6. Step 6: Final answer
    x = 8,108.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.