Home / 18,821.00-28,225.55-6,338.10

Finding the Fourth Proportional to 18,821.00, 28,225.55 and 6,338.10

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Solution

The fourth proportional to 18,821.00, 28,225.55 and 6,338.10 is: 9,505.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.00 : 28,225.55 = 6,338.10 : x
  2. Step 2: Convert to fraction form
    18,821.00/28,225.55 = 6,338.10/x
  3. Step 3: Cross multiply
    18,821.00x = 28,225.55 × 6,338.10
  4. Step 4: Simplify right side
    18,821.00x = 178,896,326.76
  5. Step 5: Solve for x
    x = 178,896,326.76/18,821.00
  6. Step 6: Final answer
    x = 9,505.15

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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.