Home / 12,440.36-18,655.68-5,510

Finding the Fourth Proportional to 12,440.36, 18,655.68 and 5,510

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Solution

The fourth proportional to 12,440.36, 18,655.68 and 5,510 is: 8,262.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.36 : 18,655.68 = 5,510 : x
  2. Step 2: Convert to fraction form
    12,440.36/18,655.68 = 5,510/x
  3. Step 3: Cross multiply
    12,440.36x = 18,655.68 × 5,510
  4. Step 4: Simplify right side
    12,440.36x = 102,792,796.80
  5. Step 5: Solve for x
    x = 102,792,796.80/12,440.36
  6. Step 6: Final answer
    x = 8,262.85

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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.