Home / 18,219.20-27,318.71-6,369.80

Finding the Fourth Proportional to 18,219.20, 27,318.71 and 6,369.80

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Solution

The fourth proportional to 18,219.20, 27,318.71 and 6,369.80 is: 9,551.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.20 : 27,318.71 = 6,369.80 : x
  2. Step 2: Convert to fraction form
    18,219.20/27,318.71 = 6,369.80/x
  3. Step 3: Cross multiply
    18,219.20x = 27,318.71 × 6,369.80
  4. Step 4: Simplify right side
    18,219.20x = 174,014,550.52
  5. Step 5: Solve for x
    x = 174,014,550.52/18,219.20
  6. Step 6: Final answer
    x = 9,551.17

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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.