Home / 12,983.97-19,478.84-3,749.25

Finding the Fourth Proportional to 12,983.97, 19,478.84 and 3,749.25

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Solution

The fourth proportional to 12,983.97, 19,478.84 and 3,749.25 is: 5,624.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983.97 : 19,478.84 = 3,749.25 : x
  2. Step 2: Convert to fraction form
    12,983.97/19,478.84 = 3,749.25/x
  3. Step 3: Cross multiply
    12,983.97x = 19,478.84 × 3,749.25
  4. Step 4: Simplify right side
    12,983.97x = 73,031,022.12
  5. Step 5: Solve for x
    x = 73,031,022.12/12,983.97
  6. Step 6: Final answer
    x = 5,624.71

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1.5x scale

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.