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Finding the Fourth Proportional to 11,770.86, 16,242.03 and 6,465.90

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Solution

The fourth proportional to 11,770.86, 16,242.03 and 6,465.90 is: 8,921.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,770.86 : 16,242.03 = 6,465.90 : x
  2. Step 2: Convert to fraction form
    11,770.86/16,242.03 = 6,465.90/x
  3. Step 3: Cross multiply
    11,770.86x = 16,242.03 × 6,465.90
  4. Step 4: Simplify right side
    11,770.86x = 105,019,341.78
  5. Step 5: Solve for x
    x = 105,019,341.78/11,770.86
  6. Step 6: Final answer
    x = 8,921.98

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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.