Home / 18,821.05-28,233.73-6,336.79

Finding the Fourth Proportional to 18,821.05, 28,233.73 and 6,336.79

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Solution

The fourth proportional to 18,821.05, 28,233.73 and 6,336.79 is: 9,505.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.05 : 28,233.73 = 6,336.79 : x
  2. Step 2: Convert to fraction form
    18,821.05/28,233.73 = 6,336.79/x
  3. Step 3: Cross multiply
    18,821.05x = 28,233.73 × 6,336.79
  4. Step 4: Simplify right side
    18,821.05x = 178,911,155.26
  5. Step 5: Solve for x
    x = 178,911,155.26/18,821.05
  6. Step 6: Final answer
    x = 9,505.91

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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.