Home / 11,977.92-17,969.10-3,657

Finding the Fourth Proportional to 11,977.92, 17,969.10 and 3,657

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Solution

The fourth proportional to 11,977.92, 17,969.10 and 3,657 is: 5,486.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.92 : 17,969.10 = 3,657 : x
  2. Step 2: Convert to fraction form
    11,977.92/17,969.10 = 3,657/x
  3. Step 3: Cross multiply
    11,977.92x = 17,969.10 × 3,657
  4. Step 4: Simplify right side
    11,977.92x = 65,712,998.70
  5. Step 5: Solve for x
    x = 65,712,998.70/11,977.92
  6. Step 6: Final answer
    x = 5,486.18

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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.