Home / 14,227.24-19,631.78-7,939.88

Finding the Fourth Proportional to 14,227.24, 19,631.78 and 7,939.88

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Solution

The fourth proportional to 14,227.24, 19,631.78 and 7,939.88 is: 10,956.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,227.24 : 19,631.78 = 7,939.88 : x
  2. Step 2: Convert to fraction form
    14,227.24/19,631.78 = 7,939.88/x
  3. Step 3: Cross multiply
    14,227.24x = 19,631.78 × 7,939.88
  4. Step 4: Simplify right side
    14,227.24x = 155,873,977.39
  5. Step 5: Solve for x
    x = 155,873,977.39/14,227.24
  6. Step 6: Final answer
    x = 10,956.02

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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.