Home / 12,918.64-17,833.14-8,732.56

Finding the Fourth Proportional to 12,918.64, 17,833.14 and 8,732.56

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Solution

The fourth proportional to 12,918.64, 17,833.14 and 8,732.56 is: 12,054.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918.64 : 17,833.14 = 8,732.56 : x
  2. Step 2: Convert to fraction form
    12,918.64/17,833.14 = 8,732.56/x
  3. Step 3: Cross multiply
    12,918.64x = 17,833.14 × 8,732.56
  4. Step 4: Simplify right side
    12,918.64x = 155,728,965.04
  5. Step 5: Solve for x
    x = 155,728,965.04/12,918.64
  6. Step 6: Final answer
    x = 12,054.59

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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.