Home / 15,083.42-20,815.66-11,299.90

Finding the Fourth Proportional to 15,083.42, 20,815.66 and 11,299.90

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Solution

The fourth proportional to 15,083.42, 20,815.66 and 11,299.90 is: 15,594.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,083.42 : 20,815.66 = 11,299.90 : x
  2. Step 2: Convert to fraction form
    15,083.42/20,815.66 = 11,299.90/x
  3. Step 3: Cross multiply
    15,083.42x = 20,815.66 × 11,299.90
  4. Step 4: Simplify right side
    15,083.42x = 235,214,876.43
  5. Step 5: Solve for x
    x = 235,214,876.43/15,083.42
  6. Step 6: Final answer
    x = 15,594.27

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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.