Home / 15,481.16-21,364.26-8,766.61

Finding the Fourth Proportional to 15,481.16, 21,364.26 and 8,766.61

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Solution

The fourth proportional to 15,481.16, 21,364.26 and 8,766.61 is: 12,098.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,481.16 : 21,364.26 = 8,766.61 : x
  2. Step 2: Convert to fraction form
    15,481.16/21,364.26 = 8,766.61/x
  3. Step 3: Cross multiply
    15,481.16x = 21,364.26 × 8,766.61
  4. Step 4: Simplify right side
    15,481.16x = 187,292,135.36
  5. Step 5: Solve for x
    x = 187,292,135.36/15,481.16
  6. Step 6: Final answer
    x = 12,098.07

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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.