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Finding the Fourth Proportional to 8,745.66, 12,059.28 and 6,853.86

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Solution

The fourth proportional to 8,745.66, 12,059.28 and 6,853.86 is: 9,450.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.66 : 12,059.28 = 6,853.86 : x
  2. Step 2: Convert to fraction form
    8,745.66/12,059.28 = 6,853.86/x
  3. Step 3: Cross multiply
    8,745.66x = 12,059.28 × 6,853.86
  4. Step 4: Simplify right side
    8,745.66x = 82,652,616.82
  5. Step 5: Solve for x
    x = 82,652,616.82/8,745.66
  6. Step 6: Final answer
    x = 9,450.70

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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.