Home / 15,555.25-21,465.52-8,481.61

Finding the Fourth Proportional to 15,555.25, 21,465.52 and 8,481.61

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Solution

The fourth proportional to 15,555.25, 21,465.52 and 8,481.61 is: 11,704.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.25 : 21,465.52 = 8,481.61 : x
  2. Step 2: Convert to fraction form
    15,555.25/21,465.52 = 8,481.61/x
  3. Step 3: Cross multiply
    15,555.25x = 21,465.52 × 8,481.61
  4. Step 4: Simplify right side
    15,555.25x = 182,062,169.09
  5. Step 5: Solve for x
    x = 182,062,169.09/15,555.25
  6. Step 6: Final answer
    x = 11,704.23

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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.