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Finding the Fourth Proportional to 10,917.91, 15,066.72 and 6,202.20

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Solution

The fourth proportional to 10,917.91, 15,066.72 and 6,202.20 is: 8,559.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.91 : 15,066.72 = 6,202.20 : x
  2. Step 2: Convert to fraction form
    10,917.91/15,066.72 = 6,202.20/x
  3. Step 3: Cross multiply
    10,917.91x = 15,066.72 × 6,202.20
  4. Step 4: Simplify right side
    10,917.91x = 93,446,748.88
  5. Step 5: Solve for x
    x = 93,446,748.88/10,917.91
  6. Step 6: Final answer
    x = 8,559.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.