Home / 11,920.06-17,881.66-4,422.60

Finding the Fourth Proportional to 11,920.06, 17,881.66 and 4,422.60

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Solution

The fourth proportional to 11,920.06, 17,881.66 and 4,422.60 is: 6,634.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,920.06 : 17,881.66 = 4,422.60 : x
  2. Step 2: Convert to fraction form
    11,920.06/17,881.66 = 4,422.60/x
  3. Step 3: Cross multiply
    11,920.06x = 17,881.66 × 4,422.60
  4. Step 4: Simplify right side
    11,920.06x = 79,083,373.76
  5. Step 5: Solve for x
    x = 79,083,373.76/11,920.06
  6. Step 6: Final answer
    x = 6,634.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.