Home / 13,939.62-19,236.68-7,566.21

Finding the Fourth Proportional to 13,939.62, 19,236.68 and 7,566.21

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Solution

The fourth proportional to 13,939.62, 19,236.68 and 7,566.21 is: 10,441.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.62 : 19,236.68 = 7,566.21 : x
  2. Step 2: Convert to fraction form
    13,939.62/19,236.68 = 7,566.21/x
  3. Step 3: Cross multiply
    13,939.62x = 19,236.68 × 7,566.21
  4. Step 4: Simplify right side
    13,939.62x = 145,548,760.58
  5. Step 5: Solve for x
    x = 145,548,760.58/13,939.62
  6. Step 6: Final answer
    x = 10,441.37

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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.