Home / 9,231.39-12,739.79-5,253.07

Finding the Fourth Proportional to 9,231.39, 12,739.79 and 5,253.07

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Solution

The fourth proportional to 9,231.39, 12,739.79 and 5,253.07 is: 7,249.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,231.39 : 12,739.79 = 5,253.07 : x
  2. Step 2: Convert to fraction form
    9,231.39/12,739.79 = 5,253.07/x
  3. Step 3: Cross multiply
    9,231.39x = 12,739.79 × 5,253.07
  4. Step 4: Simplify right side
    9,231.39x = 66,923,008.66
  5. Step 5: Solve for x
    x = 66,923,008.66/9,231.39
  6. Step 6: Final answer
    x = 7,249.51

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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.