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Finding the Fourth Proportional to 8,656.66, 12,997.08 and 4,442.86

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Solution

The fourth proportional to 8,656.66, 12,997.08 and 4,442.86 is: 6,670.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.66 : 12,997.08 = 4,442.86 : x
  2. Step 2: Convert to fraction form
    8,656.66/12,997.08 = 4,442.86/x
  3. Step 3: Cross multiply
    8,656.66x = 12,997.08 × 4,442.86
  4. Step 4: Simplify right side
    8,656.66x = 57,744,206.85
  5. Step 5: Solve for x
    x = 57,744,206.85/8,656.66
  6. Step 6: Final answer
    x = 6,670.49

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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.