Home / 18,821.40-28,224.93-6,338.07

Finding the Fourth Proportional to 18,821.40, 28,224.93 and 6,338.07

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Solution

The fourth proportional to 18,821.40, 28,224.93 and 6,338.07 is: 9,504.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.40 : 28,224.93 = 6,338.07 : x
  2. Step 2: Convert to fraction form
    18,821.40/28,224.93 = 6,338.07/x
  3. Step 3: Cross multiply
    18,821.40x = 28,224.93 × 6,338.07
  4. Step 4: Simplify right side
    18,821.40x = 178,891,664.16
  5. Step 5: Solve for x
    x = 178,891,664.16/18,821.40
  6. Step 6: Final answer
    x = 9,504.69

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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.