Home / 12,264.45-18,399.64-3,945.24

Finding the Fourth Proportional to 12,264.45, 18,399.64 and 3,945.24

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Solution

The fourth proportional to 12,264.45, 18,399.64 and 3,945.24 is: 5,918.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,264.45 : 18,399.64 = 3,945.24 : x
  2. Step 2: Convert to fraction form
    12,264.45/18,399.64 = 3,945.24/x
  3. Step 3: Cross multiply
    12,264.45x = 18,399.64 × 3,945.24
  4. Step 4: Simplify right side
    12,264.45x = 72,590,995.71
  5. Step 5: Solve for x
    x = 72,590,995.71/12,264.45
  6. Step 6: Final answer
    x = 5,918.81

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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.