Home / 11,422.82-15,751.36-8,900.46

Finding the Fourth Proportional to 11,422.82, 15,751.36 and 8,900.46

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Solution

The fourth proportional to 11,422.82, 15,751.36 and 8,900.46 is: 12,273.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,422.82 : 15,751.36 = 8,900.46 : x
  2. Step 2: Convert to fraction form
    11,422.82/15,751.36 = 8,900.46/x
  3. Step 3: Cross multiply
    11,422.82x = 15,751.36 × 8,900.46
  4. Step 4: Simplify right side
    11,422.82x = 140,194,349.63
  5. Step 5: Solve for x
    x = 140,194,349.63/11,422.82
  6. Step 6: Final answer
    x = 12,273.18

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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.