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Finding the Fourth Proportional to 9,230.88, 12,739.50 and 5,252.88

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Solution

The fourth proportional to 9,230.88, 12,739.50 and 5,252.88 is: 7,249.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,230.88 : 12,739.50 = 5,252.88 : x
  2. Step 2: Convert to fraction form
    9,230.88/12,739.50 = 5,252.88/x
  3. Step 3: Cross multiply
    9,230.88x = 12,739.50 × 5,252.88
  4. Step 4: Simplify right side
    9,230.88x = 66,919,064.76
  5. Step 5: Solve for x
    x = 66,919,064.76/9,230.88
  6. Step 6: Final answer
    x = 7,249.48

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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.