Home / 11,772.46-17,658.66-3,986.74

Finding the Fourth Proportional to 11,772.46, 17,658.66 and 3,986.74

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Solution

The fourth proportional to 11,772.46, 17,658.66 and 3,986.74 is: 5,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,772.46 : 17,658.66 = 3,986.74 : x
  2. Step 2: Convert to fraction form
    11,772.46/17,658.66 = 3,986.74/x
  3. Step 3: Cross multiply
    11,772.46x = 17,658.66 × 3,986.74
  4. Step 4: Simplify right side
    11,772.46x = 70,400,486.17
  5. Step 5: Solve for x
    x = 70,400,486.17/11,772.46
  6. Step 6: Final answer
    x = 5,980.10

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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.