Home / 12,218.38-18,328.44-5,983.60

Finding the Fourth Proportional to 12,218.38, 18,328.44 and 5,983.60

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Solution

The fourth proportional to 12,218.38, 18,328.44 and 5,983.60 is: 8,975.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.38 : 18,328.44 = 5,983.60 : x
  2. Step 2: Convert to fraction form
    12,218.38/18,328.44 = 5,983.60/x
  3. Step 3: Cross multiply
    12,218.38x = 18,328.44 × 5,983.60
  4. Step 4: Simplify right side
    12,218.38x = 109,670,053.58
  5. Step 5: Solve for x
    x = 109,670,053.58/12,218.38
  6. Step 6: Final answer
    x = 8,975.83

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1.5x scale

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.