Home / 19,547.28-26,974.62-11,163.78

Finding the Fourth Proportional to 19,547.28, 26,974.62 and 11,163.78

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Solution

The fourth proportional to 19,547.28, 26,974.62 and 11,163.78 is: 15,405.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,547.28 : 26,974.62 = 11,163.78 : x
  2. Step 2: Convert to fraction form
    19,547.28/26,974.62 = 11,163.78/x
  3. Step 3: Cross multiply
    19,547.28x = 26,974.62 × 11,163.78
  4. Step 4: Simplify right side
    19,547.28x = 301,138,723.26
  5. Step 5: Solve for x
    x = 301,138,723.26/19,547.28
  6. Step 6: Final answer
    x = 15,405.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.