Home / 12,126.24-18,189.69-3,361.23

Finding the Fourth Proportional to 12,126.24, 18,189.69 and 3,361.23

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Solution

The fourth proportional to 12,126.24, 18,189.69 and 3,361.23 is: 5,041.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.24 : 18,189.69 = 3,361.23 : x
  2. Step 2: Convert to fraction form
    12,126.24/18,189.69 = 3,361.23/x
  3. Step 3: Cross multiply
    12,126.24x = 18,189.69 × 3,361.23
  4. Step 4: Simplify right side
    12,126.24x = 61,139,719.11
  5. Step 5: Solve for x
    x = 61,139,719.11/12,126.24
  6. Step 6: Final answer
    x = 5,041.94

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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.