Home / 12,200.49-18,287.78-4,803.93

Finding the Fourth Proportional to 12,200.49, 18,287.78 and 4,803.93

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Solution

The fourth proportional to 12,200.49, 18,287.78 and 4,803.93 is: 7,200.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.49 : 18,287.78 = 4,803.93 : x
  2. Step 2: Convert to fraction form
    12,200.49/18,287.78 = 4,803.93/x
  3. Step 3: Cross multiply
    12,200.49x = 18,287.78 × 4,803.93
  4. Step 4: Simplify right side
    12,200.49x = 87,853,190.96
  5. Step 5: Solve for x
    x = 87,853,190.96/12,200.49
  6. Step 6: Final answer
    x = 7,200.79

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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.