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Finding the Fourth Proportional to 9,228.68, 12,736.30 and 5,249.56

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Solution

The fourth proportional to 9,228.68, 12,736.30 and 5,249.56 is: 7,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,228.68 : 12,736.30 = 5,249.56 : x
  2. Step 2: Convert to fraction form
    9,228.68/12,736.30 = 5,249.56/x
  3. Step 3: Cross multiply
    9,228.68x = 12,736.30 × 5,249.56
  4. Step 4: Simplify right side
    9,228.68x = 66,859,971.03
  5. Step 5: Solve for x
    x = 66,859,971.03/9,228.68
  6. Step 6: Final answer
    x = 7,244.80

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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.