Home / 15,512.27-21,408.09-8,799.08

Finding the Fourth Proportional to 15,512.27, 21,408.09 and 8,799.08

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Solution

The fourth proportional to 15,512.27, 21,408.09 and 8,799.08 is: 12,143.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.27 : 21,408.09 = 8,799.08 : x
  2. Step 2: Convert to fraction form
    15,512.27/21,408.09 = 8,799.08/x
  3. Step 3: Cross multiply
    15,512.27x = 21,408.09 × 8,799.08
  4. Step 4: Simplify right side
    15,512.27x = 188,371,496.56
  5. Step 5: Solve for x
    x = 188,371,496.56/15,512.27
  6. Step 6: Final answer
    x = 12,143.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.