Home / 15,555.44-21,466.62-8,481.92

Finding the Fourth Proportional to 15,555.44, 21,466.62 and 8,481.92

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Solution

The fourth proportional to 15,555.44, 21,466.62 and 8,481.92 is: 11,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.44 : 21,466.62 = 8,481.92 : x
  2. Step 2: Convert to fraction form
    15,555.44/21,466.62 = 8,481.92/x
  3. Step 3: Cross multiply
    15,555.44x = 21,466.62 × 8,481.92
  4. Step 4: Simplify right side
    15,555.44x = 182,078,046.18
  5. Step 5: Solve for x
    x = 182,078,046.18/15,555.44
  6. Step 6: Final answer
    x = 11,705.10

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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.