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Finding the Fourth Proportional to 8,237.78, 11,368.32 and 4,700.92

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Solution

The fourth proportional to 8,237.78, 11,368.32 and 4,700.92 is: 6,487.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,237.78 : 11,368.32 = 4,700.92 : x
  2. Step 2: Convert to fraction form
    8,237.78/11,368.32 = 4,700.92/x
  3. Step 3: Cross multiply
    8,237.78x = 11,368.32 × 4,700.92
  4. Step 4: Simplify right side
    8,237.78x = 53,441,562.85
  5. Step 5: Solve for x
    x = 53,441,562.85/8,237.78
  6. Step 6: Final answer
    x = 6,487.37

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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.