Home / 13,311.90-19,965.73-4,426.49

Finding the Fourth Proportional to 13,311.90, 19,965.73 and 4,426.49

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Solution

The fourth proportional to 13,311.90, 19,965.73 and 4,426.49 is: 6,639.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.90 : 19,965.73 = 4,426.49 : x
  2. Step 2: Convert to fraction form
    13,311.90/19,965.73 = 4,426.49/x
  3. Step 3: Cross multiply
    13,311.90x = 19,965.73 × 4,426.49
  4. Step 4: Simplify right side
    13,311.90x = 88,378,104.19
  5. Step 5: Solve for x
    x = 88,378,104.19/13,311.90
  6. Step 6: Final answer
    x = 6,639.03

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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.