Home / 9,327.02-12,872.38-5,239.49

Finding the Fourth Proportional to 9,327.02, 12,872.38 and 5,239.49

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Solution

The fourth proportional to 9,327.02, 12,872.38 and 5,239.49 is: 7,231.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.02 : 12,872.38 = 5,239.49 : x
  2. Step 2: Convert to fraction form
    9,327.02/12,872.38 = 5,239.49/x
  3. Step 3: Cross multiply
    9,327.02x = 12,872.38 × 5,239.49
  4. Step 4: Simplify right side
    9,327.02x = 67,444,745.02
  5. Step 5: Solve for x
    x = 67,444,745.02/9,327.02
  6. Step 6: Final answer
    x = 7,231.12

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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.