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Finding the Fourth Proportional to 8,418.12, 12,602.57 and 5,910.66

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Solution

The fourth proportional to 8,418.12, 12,602.57 and 5,910.66 is: 8,848.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.12 : 12,602.57 = 5,910.66 : x
  2. Step 2: Convert to fraction form
    8,418.12/12,602.57 = 5,910.66/x
  3. Step 3: Cross multiply
    8,418.12x = 12,602.57 × 5,910.66
  4. Step 4: Simplify right side
    8,418.12x = 74,489,506.40
  5. Step 5: Solve for x
    x = 74,489,506.40/8,418.12
  6. Step 6: Final answer
    x = 8,848.71

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.