Home / 11,547.12-17,321.52-3,945.36

Finding the Fourth Proportional to 11,547.12, 17,321.52 and 3,945.36

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Solution

The fourth proportional to 11,547.12, 17,321.52 and 3,945.36 is: 5,918.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,547.12 : 17,321.52 = 3,945.36 : x
  2. Step 2: Convert to fraction form
    11,547.12/17,321.52 = 3,945.36/x
  3. Step 3: Cross multiply
    11,547.12x = 17,321.52 × 3,945.36
  4. Step 4: Simplify right side
    11,547.12x = 68,339,632.15
  5. Step 5: Solve for x
    x = 68,339,632.15/11,547.12
  6. Step 6: Final answer
    x = 5,918.33

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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.