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Finding the Fourth Proportional to 8,775.86, 12,110.64 and 4,999.19

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Solution

The fourth proportional to 8,775.86, 12,110.64 and 4,999.19 is: 6,898.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.86 : 12,110.64 = 4,999.19 : x
  2. Step 2: Convert to fraction form
    8,775.86/12,110.64 = 4,999.19/x
  3. Step 3: Cross multiply
    8,775.86x = 12,110.64 × 4,999.19
  4. Step 4: Simplify right side
    8,775.86x = 60,543,311.08
  5. Step 5: Solve for x
    x = 60,543,311.08/8,775.86
  6. Step 6: Final answer
    x = 6,898.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.