Home / 11,918.40-17,886.32-6,079.92

Finding the Fourth Proportional to 11,918.40, 17,886.32 and 6,079.92

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Solution

The fourth proportional to 11,918.40, 17,886.32 and 6,079.92 is: 9,124.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.40 : 17,886.32 = 6,079.92 : x
  2. Step 2: Convert to fraction form
    11,918.40/17,886.32 = 6,079.92/x
  3. Step 3: Cross multiply
    11,918.40x = 17,886.32 × 6,079.92
  4. Step 4: Simplify right side
    11,918.40x = 108,747,394.69
  5. Step 5: Solve for x
    x = 108,747,394.69/11,918.40
  6. Step 6: Final answer
    x = 9,124.33

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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.