Home / 12,205.48-18,282.66-7,800.52

Finding the Fourth Proportional to 12,205.48, 18,282.66 and 7,800.52

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Solution

The fourth proportional to 12,205.48, 18,282.66 and 7,800.52 is: 11,684.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,205.48 : 18,282.66 = 7,800.52 : x
  2. Step 2: Convert to fraction form
    12,205.48/18,282.66 = 7,800.52/x
  3. Step 3: Cross multiply
    12,205.48x = 18,282.66 × 7,800.52
  4. Step 4: Simplify right side
    12,205.48x = 142,614,254.98
  5. Step 5: Solve for x
    x = 142,614,254.98/12,205.48
  6. Step 6: Final answer
    x = 11,684.44

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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.