Home / 7,781.01-11,664.96-3,618.89

Finding the Fourth Proportional to 7,781.01, 11,664.96 and 3,618.89

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Solution

The fourth proportional to 7,781.01, 11,664.96 and 3,618.89 is: 5,425.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.01 : 11,664.96 = 3,618.89 : x
  2. Step 2: Convert to fraction form
    7,781.01/11,664.96 = 3,618.89/x
  3. Step 3: Cross multiply
    7,781.01x = 11,664.96 × 3,618.89
  4. Step 4: Simplify right side
    7,781.01x = 42,214,207.09
  5. Step 5: Solve for x
    x = 42,214,207.09/7,781.01
  6. Step 6: Final answer
    x = 5,425.29

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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.