Home / 15,481.06-21,364.12-8,766.52

Finding the Fourth Proportional to 15,481.06, 21,364.12 and 8,766.52

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Solution

The fourth proportional to 15,481.06, 21,364.12 and 8,766.52 is: 12,097.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,481.06 : 21,364.12 = 8,766.52 : x
  2. Step 2: Convert to fraction form
    15,481.06/21,364.12 = 8,766.52/x
  3. Step 3: Cross multiply
    15,481.06x = 21,364.12 × 8,766.52
  4. Step 4: Simplify right side
    15,481.06x = 187,288,985.26
  5. Step 5: Solve for x
    x = 187,288,985.26/15,481.06
  6. Step 6: Final answer
    x = 12,097.94

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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.