Home / 11,989.27-17,993.32-8,317.34

Finding the Fourth Proportional to 11,989.27, 17,993.32 and 8,317.34

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Solution

The fourth proportional to 11,989.27, 17,993.32 and 8,317.34 is: 12,482.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.27 : 17,993.32 = 8,317.34 : x
  2. Step 2: Convert to fraction form
    11,989.27/17,993.32 = 8,317.34/x
  3. Step 3: Cross multiply
    11,989.27x = 17,993.32 × 8,317.34
  4. Step 4: Simplify right side
    11,989.27x = 149,656,449.41
  5. Step 5: Solve for x
    x = 149,656,449.41/11,989.27
  6. Step 6: Final answer
    x = 12,482.53

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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.