Home / 13,965.91-20,949.09-3,435.96

Finding the Fourth Proportional to 13,965.91, 20,949.09 and 3,435.96

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Solution

The fourth proportional to 13,965.91, 20,949.09 and 3,435.96 is: 5,154.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.91 : 20,949.09 = 3,435.96 : x
  2. Step 2: Convert to fraction form
    13,965.91/20,949.09 = 3,435.96/x
  3. Step 3: Cross multiply
    13,965.91x = 20,949.09 × 3,435.96
  4. Step 4: Simplify right side
    13,965.91x = 71,980,248.16
  5. Step 5: Solve for x
    x = 71,980,248.16/13,965.91
  6. Step 6: Final answer
    x = 5,154.00

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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.