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Finding the Fourth Proportional to 8,385.39, 12,587.81 and 4,497.39

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Solution

The fourth proportional to 8,385.39, 12,587.81 and 4,497.39 is: 6,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.39 : 12,587.81 = 4,497.39 : x
  2. Step 2: Convert to fraction form
    8,385.39/12,587.81 = 4,497.39/x
  3. Step 3: Cross multiply
    8,385.39x = 12,587.81 × 4,497.39
  4. Step 4: Simplify right side
    8,385.39x = 56,612,268.33
  5. Step 5: Solve for x
    x = 56,612,268.33/8,385.39
  6. Step 6: Final answer
    x = 6,751.30

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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.