Home / 15,306.36-22,911.90-11,787.30

Finding the Fourth Proportional to 15,306.36, 22,911.90 and 11,787.30

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Solution

The fourth proportional to 15,306.36, 22,911.90 and 11,787.30 is: 17,644.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,306.36 : 22,911.90 = 11,787.30 : x
  2. Step 2: Convert to fraction form
    15,306.36/22,911.90 = 11,787.30/x
  3. Step 3: Cross multiply
    15,306.36x = 22,911.90 × 11,787.30
  4. Step 4: Simplify right side
    15,306.36x = 270,069,438.87
  5. Step 5: Solve for x
    x = 270,069,438.87/15,306.36
  6. Step 6: Final answer
    x = 17,644.26

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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.