Home / 15,901.29-21,951.68-9,936.27

Finding the Fourth Proportional to 15,901.29, 21,951.68 and 9,936.27

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Solution

The fourth proportional to 15,901.29, 21,951.68 and 9,936.27 is: 13,716.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,901.29 : 21,951.68 = 9,936.27 : x
  2. Step 2: Convert to fraction form
    15,901.29/21,951.68 = 9,936.27/x
  3. Step 3: Cross multiply
    15,901.29x = 21,951.68 × 9,936.27
  4. Step 4: Simplify right side
    15,901.29x = 218,117,769.75
  5. Step 5: Solve for x
    x = 218,117,769.75/15,901.29
  6. Step 6: Final answer
    x = 13,716.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.