Home / 8,945.20-12,350.07-6,117.29

Finding the Fourth Proportional to 8,945.20, 12,350.07 and 6,117.29

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Solution

The fourth proportional to 8,945.20, 12,350.07 and 6,117.29 is: 8,445.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.20 : 12,350.07 = 6,117.29 : x
  2. Step 2: Convert to fraction form
    8,945.20/12,350.07 = 6,117.29/x
  3. Step 3: Cross multiply
    8,945.20x = 12,350.07 × 6,117.29
  4. Step 4: Simplify right side
    8,945.20x = 75,548,944.27
  5. Step 5: Solve for x
    x = 75,548,944.27/8,945.20
  6. Step 6: Final answer
    x = 8,445.75

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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.