Home / 12,231.90-18,342.45-4,833.90

Finding the Fourth Proportional to 12,231.90, 18,342.45 and 4,833.90

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Solution

The fourth proportional to 12,231.90, 18,342.45 and 4,833.90 is: 7,248.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.90 : 18,342.45 = 4,833.90 : x
  2. Step 2: Convert to fraction form
    12,231.90/18,342.45 = 4,833.90/x
  3. Step 3: Cross multiply
    12,231.90x = 18,342.45 × 4,833.90
  4. Step 4: Simplify right side
    12,231.90x = 88,665,569.06
  5. Step 5: Solve for x
    x = 88,665,569.06/12,231.90
  6. Step 6: Final answer
    x = 7,248.72

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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.