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Finding the Fourth Proportional to 8,339.70, 12,505.86 and 2,495.19

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Solution

The fourth proportional to 8,339.70, 12,505.86 and 2,495.19 is: 3,741.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.70 : 12,505.86 = 2,495.19 : x
  2. Step 2: Convert to fraction form
    8,339.70/12,505.86 = 2,495.19/x
  3. Step 3: Cross multiply
    8,339.70x = 12,505.86 × 2,495.19
  4. Step 4: Simplify right side
    8,339.70x = 31,204,496.81
  5. Step 5: Solve for x
    x = 31,204,496.81/8,339.70
  6. Step 6: Final answer
    x = 3,741.68

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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.