Home / 15,033.87-20,746.78-8,319.96

Finding the Fourth Proportional to 15,033.87, 20,746.78 and 8,319.96

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Solution

The fourth proportional to 15,033.87, 20,746.78 and 8,319.96 is: 11,481.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,033.87 : 20,746.78 = 8,319.96 : x
  2. Step 2: Convert to fraction form
    15,033.87/20,746.78 = 8,319.96/x
  3. Step 3: Cross multiply
    15,033.87x = 20,746.78 × 8,319.96
  4. Step 4: Simplify right side
    15,033.87x = 172,612,379.73
  5. Step 5: Solve for x
    x = 172,612,379.73/15,033.87
  6. Step 6: Final answer
    x = 11,481.57

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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.