Home / 13,965.35-20,955.11-9,288.61

Finding the Fourth Proportional to 13,965.35, 20,955.11 and 9,288.61

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Solution

The fourth proportional to 13,965.35, 20,955.11 and 9,288.61 is: 13,937.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.35 : 20,955.11 = 9,288.61 : x
  2. Step 2: Convert to fraction form
    13,965.35/20,955.11 = 9,288.61/x
  3. Step 3: Cross multiply
    13,965.35x = 20,955.11 × 9,288.61
  4. Step 4: Simplify right side
    13,965.35x = 194,643,844.30
  5. Step 5: Solve for x
    x = 194,643,844.30/13,965.35
  6. Step 6: Final answer
    x = 13,937.63

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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.