Home / 15,512.15-21,404.98-8,796.44

Finding the Fourth Proportional to 15,512.15, 21,404.98 and 8,796.44

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Solution

The fourth proportional to 15,512.15, 21,404.98 and 8,796.44 is: 12,138.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.15 : 21,404.98 = 8,796.44 : x
  2. Step 2: Convert to fraction form
    15,512.15/21,404.98 = 8,796.44/x
  3. Step 3: Cross multiply
    15,512.15x = 21,404.98 × 8,796.44
  4. Step 4: Simplify right side
    15,512.15x = 188,287,622.27
  5. Step 5: Solve for x
    x = 188,287,622.27/15,512.15
  6. Step 6: Final answer
    x = 12,138.07

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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.