Home / 15,512.75-21,405.98-8,796.23

Finding the Fourth Proportional to 15,512.75, 21,405.98 and 8,796.23

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Solution

The fourth proportional to 15,512.75, 21,405.98 and 8,796.23 is: 12,137.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.75 : 21,405.98 = 8,796.23 : x
  2. Step 2: Convert to fraction form
    15,512.75/21,405.98 = 8,796.23/x
  3. Step 3: Cross multiply
    15,512.75x = 21,405.98 × 8,796.23
  4. Step 4: Simplify right side
    15,512.75x = 188,291,879.47
  5. Step 5: Solve for x
    x = 188,291,879.47/15,512.75
  6. Step 6: Final answer
    x = 12,137.88

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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.