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Finding the Fourth Proportional to 8,522.79, 11,762.01 and 5,688.38

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Solution

The fourth proportional to 8,522.79, 11,762.01 and 5,688.38 is: 7,850.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,522.79 : 11,762.01 = 5,688.38 : x
  2. Step 2: Convert to fraction form
    8,522.79/11,762.01 = 5,688.38/x
  3. Step 3: Cross multiply
    8,522.79x = 11,762.01 × 5,688.38
  4. Step 4: Simplify right side
    8,522.79x = 66,906,745.69
  5. Step 5: Solve for x
    x = 66,906,745.69/8,522.79
  6. Step 6: Final answer
    x = 7,850.33

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1.5x scale

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.