Home / 15,481.55-21,364.62-8,407.97

Finding the Fourth Proportional to 15,481.55, 21,364.62 and 8,407.97

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Solution

The fourth proportional to 15,481.55, 21,364.62 and 8,407.97 is: 11,603.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,481.55 : 21,364.62 = 8,407.97 : x
  2. Step 2: Convert to fraction form
    15,481.55/21,364.62 = 8,407.97/x
  3. Step 3: Cross multiply
    15,481.55x = 21,364.62 × 8,407.97
  4. Step 4: Simplify right side
    15,481.55x = 179,632,977.20
  5. Step 5: Solve for x
    x = 179,632,977.20/15,481.55
  6. Step 6: Final answer
    x = 11,603.04

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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.