Home / 18,821.37-28,225.84-6,338.30

Finding the Fourth Proportional to 18,821.37, 28,225.84 and 6,338.30

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Solution

The fourth proportional to 18,821.37, 28,225.84 and 6,338.30 is: 9,505.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.37 : 28,225.84 = 6,338.30 : x
  2. Step 2: Convert to fraction form
    18,821.37/28,225.84 = 6,338.30/x
  3. Step 3: Cross multiply
    18,821.37x = 28,225.84 × 6,338.30
  4. Step 4: Simplify right side
    18,821.37x = 178,903,709.53
  5. Step 5: Solve for x
    x = 178,903,709.53/18,821.37
  6. Step 6: Final answer
    x = 9,505.35

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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.