Home / 10,128.80-13,976.83-6,350.75

Finding the Fourth Proportional to 10,128.80, 13,976.83 and 6,350.75

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Solution

The fourth proportional to 10,128.80, 13,976.83 and 6,350.75 is: 8,763.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.80 : 13,976.83 = 6,350.75 : x
  2. Step 2: Convert to fraction form
    10,128.80/13,976.83 = 6,350.75/x
  3. Step 3: Cross multiply
    10,128.80x = 13,976.83 × 6,350.75
  4. Step 4: Simplify right side
    10,128.80x = 88,763,404.35
  5. Step 5: Solve for x
    x = 88,763,404.35/10,128.80
  6. Step 6: Final answer
    x = 8,763.47

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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.