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Finding the Fourth Proportional to 11,987.66, 17,933.31 and 10,361.66

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Solution

The fourth proportional to 11,987.66, 17,933.31 and 10,361.66 is: 15,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.66 : 17,933.31 = 10,361.66 : x
  2. Step 2: Convert to fraction form
    11,987.66/17,933.31 = 10,361.66/x
  3. Step 3: Cross multiply
    11,987.66x = 17,933.31 × 10,361.66
  4. Step 4: Simplify right side
    11,987.66x = 185,818,860.89
  5. Step 5: Solve for x
    x = 185,818,860.89/11,987.66
  6. Step 6: Final answer
    x = 15,500.85

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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.