Home / 12,133.75-18,199.81-3,368.74

Finding the Fourth Proportional to 12,133.75, 18,199.81 and 3,368.74

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Solution

The fourth proportional to 12,133.75, 18,199.81 and 3,368.74 is: 5,052.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.75 : 18,199.81 = 3,368.74 : x
  2. Step 2: Convert to fraction form
    12,133.75/18,199.81 = 3,368.74/x
  3. Step 3: Cross multiply
    12,133.75x = 18,199.81 × 3,368.74
  4. Step 4: Simplify right side
    12,133.75x = 61,310,427.94
  5. Step 5: Solve for x
    x = 61,310,427.94/12,133.75
  6. Step 6: Final answer
    x = 5,052.88

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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.