Home / 11,989.26-17,984.43-8,686.62

Finding the Fourth Proportional to 11,989.26, 17,984.43 and 8,686.62

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Solution

The fourth proportional to 11,989.26, 17,984.43 and 8,686.62 is: 13,030.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.26 : 17,984.43 = 8,686.62 : x
  2. Step 2: Convert to fraction form
    11,989.26/17,984.43 = 8,686.62/x
  3. Step 3: Cross multiply
    11,989.26x = 17,984.43 × 8,686.62
  4. Step 4: Simplify right side
    11,989.26x = 156,223,909.33
  5. Step 5: Solve for x
    x = 156,223,909.33/11,989.26
  6. Step 6: Final answer
    x = 13,030.32

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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.