Home / 12,204.28-18,285.52-6,661.52

Finding the Fourth Proportional to 12,204.28, 18,285.52 and 6,661.52

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Solution

The fourth proportional to 12,204.28, 18,285.52 and 6,661.52 is: 9,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,204.28 : 18,285.52 = 6,661.52 : x
  2. Step 2: Convert to fraction form
    12,204.28/18,285.52 = 6,661.52/x
  3. Step 3: Cross multiply
    12,204.28x = 18,285.52 × 6,661.52
  4. Step 4: Simplify right side
    12,204.28x = 121,809,357.19
  5. Step 5: Solve for x
    x = 121,809,357.19/12,204.28
  6. Step 6: Final answer
    x = 9,980.87

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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.