Home / 18,821.50-28,225.07-6,338.17

Finding the Fourth Proportional to 18,821.50, 28,225.07 and 6,338.17

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Solution

The fourth proportional to 18,821.50, 28,225.07 and 6,338.17 is: 9,504.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.50 : 28,225.07 = 6,338.17 : x
  2. Step 2: Convert to fraction form
    18,821.50/28,225.07 = 6,338.17/x
  3. Step 3: Cross multiply
    18,821.50x = 28,225.07 × 6,338.17
  4. Step 4: Simplify right side
    18,821.50x = 178,895,189.67
  5. Step 5: Solve for x
    x = 178,895,189.67/18,821.50
  6. Step 6: Final answer
    x = 9,504.83

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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.