Home / 8,231.48-12,349.24-2,685.12

Finding the Fourth Proportional to 8,231.48, 12,349.24 and 2,685.12

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Solution

The fourth proportional to 8,231.48, 12,349.24 and 2,685.12 is: 4,028.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.48 : 12,349.24 = 2,685.12 : x
  2. Step 2: Convert to fraction form
    8,231.48/12,349.24 = 2,685.12/x
  3. Step 3: Cross multiply
    8,231.48x = 12,349.24 × 2,685.12
  4. Step 4: Simplify right side
    8,231.48x = 33,159,191.31
  5. Step 5: Solve for x
    x = 33,159,191.31/8,231.48
  6. Step 6: Final answer
    x = 4,028.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.