Home / 9,176.09-12,663.79-5,197.91

Finding the Fourth Proportional to 9,176.09, 12,663.79 and 5,197.91

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Solution

The fourth proportional to 9,176.09, 12,663.79 and 5,197.91 is: 7,173.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,176.09 : 12,663.79 = 5,197.91 : x
  2. Step 2: Convert to fraction form
    9,176.09/12,663.79 = 5,197.91/x
  3. Step 3: Cross multiply
    9,176.09x = 12,663.79 × 5,197.91
  4. Step 4: Simplify right side
    9,176.09x = 65,825,240.68
  5. Step 5: Solve for x
    x = 65,825,240.68/9,176.09
  6. Step 6: Final answer
    x = 7,173.56

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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.