Home / 11,681.32-17,519.82-3,888.04

Finding the Fourth Proportional to 11,681.32, 17,519.82 and 3,888.04

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Solution

The fourth proportional to 11,681.32, 17,519.82 and 3,888.04 is: 5,831.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.32 : 17,519.82 = 3,888.04 : x
  2. Step 2: Convert to fraction form
    11,681.32/17,519.82 = 3,888.04/x
  3. Step 3: Cross multiply
    11,681.32x = 17,519.82 × 3,888.04
  4. Step 4: Simplify right side
    11,681.32x = 68,117,760.95
  5. Step 5: Solve for x
    x = 68,117,760.95/11,681.32
  6. Step 6: Final answer
    x = 5,831.34

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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.