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Finding the Fourth Proportional to 6,879.35, 10,319.03 and 6,528.75

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Solution

The fourth proportional to 6,879.35, 10,319.03 and 6,528.75 is: 9,793.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.35 : 10,319.03 = 6,528.75 : x
  2. Step 2: Convert to fraction form
    6,879.35/10,319.03 = 6,528.75/x
  3. Step 3: Cross multiply
    6,879.35x = 10,319.03 × 6,528.75
  4. Step 4: Simplify right side
    6,879.35x = 67,370,367.11
  5. Step 5: Solve for x
    x = 67,370,367.11/6,879.35
  6. Step 6: Final answer
    x = 9,793.13

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1.5x scale

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.