Home / 8,176.75-11,279.94-5,345.05

Finding the Fourth Proportional to 8,176.75, 11,279.94 and 5,345.05

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Solution

The fourth proportional to 8,176.75, 11,279.94 and 5,345.05 is: 7,373.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,176.75 : 11,279.94 = 5,345.05 : x
  2. Step 2: Convert to fraction form
    8,176.75/11,279.94 = 5,345.05/x
  3. Step 3: Cross multiply
    8,176.75x = 11,279.94 × 5,345.05
  4. Step 4: Simplify right side
    8,176.75x = 60,291,843.30
  5. Step 5: Solve for x
    x = 60,291,843.30/8,176.75
  6. Step 6: Final answer
    x = 7,373.57

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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.