Home / 11,066.60-16,604.70-5,220.20

Finding the Fourth Proportional to 11,066.60, 16,604.70 and 5,220.20

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Solution

The fourth proportional to 11,066.60, 16,604.70 and 5,220.20 is: 7,832.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,066.60 : 16,604.70 = 5,220.20 : x
  2. Step 2: Convert to fraction form
    11,066.60/16,604.70 = 5,220.20/x
  3. Step 3: Cross multiply
    11,066.60x = 16,604.70 × 5,220.20
  4. Step 4: Simplify right side
    11,066.60x = 86,679,854.94
  5. Step 5: Solve for x
    x = 86,679,854.94/11,066.60
  6. Step 6: Final answer
    x = 7,832.56

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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.