Home / 12,127.28-18,190.32-3,362.48

Finding the Fourth Proportional to 12,127.28, 18,190.32 and 3,362.48

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Solution

The fourth proportional to 12,127.28, 18,190.32 and 3,362.48 is: 5,043.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127.28 : 18,190.32 = 3,362.48 : x
  2. Step 2: Convert to fraction form
    12,127.28/18,190.32 = 3,362.48/x
  3. Step 3: Cross multiply
    12,127.28x = 18,190.32 × 3,362.48
  4. Step 4: Simplify right side
    12,127.28x = 61,164,587.19
  5. Step 5: Solve for x
    x = 61,164,587.19/12,127.28
  6. Step 6: Final answer
    x = 5,043.55

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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.