Home / 11,838.60-17,760.66-3,518.68

Finding the Fourth Proportional to 11,838.60, 17,760.66 and 3,518.68

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Solution

The fourth proportional to 11,838.60, 17,760.66 and 3,518.68 is: 5,278.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,838.60 : 17,760.66 = 3,518.68 : x
  2. Step 2: Convert to fraction form
    11,838.60/17,760.66 = 3,518.68/x
  3. Step 3: Cross multiply
    11,838.60x = 17,760.66 × 3,518.68
  4. Step 4: Simplify right side
    11,838.60x = 62,494,079.13
  5. Step 5: Solve for x
    x = 62,494,079.13/11,838.60
  6. Step 6: Final answer
    x = 5,278.84

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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.