Home / 12,166.20-18,270.36-11,612.16

Finding the Fourth Proportional to 12,166.20, 18,270.36 and 11,612.16

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Solution

The fourth proportional to 12,166.20, 18,270.36 and 11,612.16 is: 17,438.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.20 : 18,270.36 = 11,612.16 : x
  2. Step 2: Convert to fraction form
    12,166.20/18,270.36 = 11,612.16/x
  3. Step 3: Cross multiply
    12,166.20x = 18,270.36 × 11,612.16
  4. Step 4: Simplify right side
    12,166.20x = 212,158,343.58
  5. Step 5: Solve for x
    x = 212,158,343.58/12,166.20
  6. Step 6: Final answer
    x = 17,438.34

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