Home / 15,213.11-22,787.83-12,235.46

Finding the Fourth Proportional to 15,213.11, 22,787.83 and 12,235.46

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Solution

The fourth proportional to 15,213.11, 22,787.83 and 12,235.46 is: 18,327.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213.11 : 22,787.83 = 12,235.46 : x
  2. Step 2: Convert to fraction form
    15,213.11/22,787.83 = 12,235.46/x
  3. Step 3: Cross multiply
    15,213.11x = 22,787.83 × 12,235.46
  4. Step 4: Simplify right side
    15,213.11x = 278,819,569.26
  5. Step 5: Solve for x
    x = 278,819,569.26/15,213.11
  6. Step 6: Final answer
    x = 18,327.59

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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.