Home / 9,231.68-12,739.85-5,253.17

Finding the Fourth Proportional to 9,231.68, 12,739.85 and 5,253.17

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Solution

The fourth proportional to 9,231.68, 12,739.85 and 5,253.17 is: 7,249.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,231.68 : 12,739.85 = 5,253.17 : x
  2. Step 2: Convert to fraction form
    9,231.68/12,739.85 = 5,253.17/x
  3. Step 3: Cross multiply
    9,231.68x = 12,739.85 × 5,253.17
  4. Step 4: Simplify right side
    9,231.68x = 66,924,527.56
  5. Step 5: Solve for x
    x = 66,924,527.56/9,231.68
  6. Step 6: Final answer
    x = 7,249.44

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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.