Home / 9,177.29-12,665.55-5,144.80

Finding the Fourth Proportional to 9,177.29, 12,665.55 and 5,144.80

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Solution

The fourth proportional to 9,177.29, 12,665.55 and 5,144.80 is: 7,100.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.29 : 12,665.55 = 5,144.80 : x
  2. Step 2: Convert to fraction form
    9,177.29/12,665.55 = 5,144.80/x
  3. Step 3: Cross multiply
    9,177.29x = 12,665.55 × 5,144.80
  4. Step 4: Simplify right side
    9,177.29x = 65,161,704.08
  5. Step 5: Solve for x
    x = 65,161,704.08/9,177.29
  6. Step 6: Final answer
    x = 7,100.32

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Double scale
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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.