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Finding the Fourth Proportional to 8,398.95, 12,598.53 and 3,654

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Solution

The fourth proportional to 8,398.95, 12,598.53 and 3,654 is: 5,481.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,398.95 : 12,598.53 = 3,654 : x
  2. Step 2: Convert to fraction form
    8,398.95/12,598.53 = 3,654/x
  3. Step 3: Cross multiply
    8,398.95x = 12,598.53 × 3,654
  4. Step 4: Simplify right side
    8,398.95x = 46,035,028.62
  5. Step 5: Solve for x
    x = 46,035,028.62/8,398.95
  6. Step 6: Final answer
    x = 5,481.05

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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.