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Finding the Fourth Proportional to 8,745.68, 13,110.78 and 5,977.64

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Solution

The fourth proportional to 8,745.68, 13,110.78 and 5,977.64 is: 8,961.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.68 : 13,110.78 = 5,977.64 : x
  2. Step 2: Convert to fraction form
    8,745.68/13,110.78 = 5,977.64/x
  3. Step 3: Cross multiply
    8,745.68x = 13,110.78 × 5,977.64
  4. Step 4: Simplify right side
    8,745.68x = 78,371,522.96
  5. Step 5: Solve for x
    x = 78,371,522.96/8,745.68
  6. Step 6: Final answer
    x = 8,961.17

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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.