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Finding the Fourth Proportional to 8,391.95, 12,597.65 and 4,503.95

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Solution

The fourth proportional to 8,391.95, 12,597.65 and 4,503.95 is: 6,761.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.95 : 12,597.65 = 4,503.95 : x
  2. Step 2: Convert to fraction form
    8,391.95/12,597.65 = 4,503.95/x
  3. Step 3: Cross multiply
    8,391.95x = 12,597.65 × 4,503.95
  4. Step 4: Simplify right side
    8,391.95x = 56,739,185.72
  5. Step 5: Solve for x
    x = 56,739,185.72/8,391.95
  6. Step 6: Final answer
    x = 6,761.14

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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.