Home / 11,881.05-17,820.23-3,116.66

Finding the Fourth Proportional to 11,881.05, 17,820.23 and 3,116.66

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Solution

The fourth proportional to 11,881.05, 17,820.23 and 3,116.66 is: 4,674.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.05 : 17,820.23 = 3,116.66 : x
  2. Step 2: Convert to fraction form
    11,881.05/17,820.23 = 3,116.66/x
  3. Step 3: Cross multiply
    11,881.05x = 17,820.23 × 3,116.66
  4. Step 4: Simplify right side
    11,881.05x = 55,539,493.35
  5. Step 5: Solve for x
    x = 55,539,493.35/11,881.05
  6. Step 6: Final answer
    x = 4,674.63

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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.