Home / 13,891.69-19,173.27-7,922.80

Finding the Fourth Proportional to 13,891.69, 19,173.27 and 7,922.80

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Solution

The fourth proportional to 13,891.69, 19,173.27 and 7,922.80 is: 10,935.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.69 : 19,173.27 = 7,922.80 : x
  2. Step 2: Convert to fraction form
    13,891.69/19,173.27 = 7,922.80/x
  3. Step 3: Cross multiply
    13,891.69x = 19,173.27 × 7,922.80
  4. Step 4: Simplify right side
    13,891.69x = 151,905,983.56
  5. Step 5: Solve for x
    x = 151,905,983.56/13,891.69
  6. Step 6: Final answer
    x = 10,935.03

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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.