Home / 12,553.25-18,819.15-5,153.09

Finding the Fourth Proportional to 12,553.25, 18,819.15 and 5,153.09

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Solution

The fourth proportional to 12,553.25, 18,819.15 and 5,153.09 is: 7,725.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.25 : 18,819.15 = 5,153.09 : x
  2. Step 2: Convert to fraction form
    12,553.25/18,819.15 = 5,153.09/x
  3. Step 3: Cross multiply
    12,553.25x = 18,819.15 × 5,153.09
  4. Step 4: Simplify right side
    12,553.25x = 96,976,773.67
  5. Step 5: Solve for x
    x = 96,976,773.67/12,553.25
  6. Step 6: Final answer
    x = 7,725.23

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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.