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Finding the Fourth Proportional to 18,800.22, 28,202.76 and 6,314.88

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Solution

The fourth proportional to 18,800.22, 28,202.76 and 6,314.88 is: 9,473.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800.22 : 28,202.76 = 6,314.88 : x
  2. Step 2: Convert to fraction form
    18,800.22/28,202.76 = 6,314.88/x
  3. Step 3: Cross multiply
    18,800.22x = 28,202.76 × 6,314.88
  4. Step 4: Simplify right side
    18,800.22x = 178,097,045.07
  5. Step 5: Solve for x
    x = 178,097,045.07/18,800.22
  6. Step 6: Final answer
    x = 9,473.14

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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.