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Finding the Fourth Proportional to 8,564.27, 11,810.81 and 5,579.01

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Solution

The fourth proportional to 8,564.27, 11,810.81 and 5,579.01 is: 7,693.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,564.27 : 11,810.81 = 5,579.01 : x
  2. Step 2: Convert to fraction form
    8,564.27/11,810.81 = 5,579.01/x
  3. Step 3: Cross multiply
    8,564.27x = 11,810.81 × 5,579.01
  4. Step 4: Simplify right side
    8,564.27x = 65,892,641.05
  5. Step 5: Solve for x
    x = 65,892,641.05/8,564.27
  6. Step 6: Final answer
    x = 7,693.90

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Why These Related Problems?

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