Home / 15,025.80-20,734.75-8,310.98

Finding the Fourth Proportional to 15,025.80, 20,734.75 and 8,310.98

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Solution

The fourth proportional to 15,025.80, 20,734.75 and 8,310.98 is: 11,468.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,025.80 : 20,734.75 = 8,310.98 : x
  2. Step 2: Convert to fraction form
    15,025.80/20,734.75 = 8,310.98/x
  3. Step 3: Cross multiply
    15,025.80x = 20,734.75 × 8,310.98
  4. Step 4: Simplify right side
    15,025.80x = 172,326,092.56
  5. Step 5: Solve for x
    x = 172,326,092.56/15,025.80
  6. Step 6: Final answer
    x = 11,468.68

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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.