Home / 12,302.74-18,456.79-3,983.59

Finding the Fourth Proportional to 12,302.74, 18,456.79 and 3,983.59

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Solution

The fourth proportional to 12,302.74, 18,456.79 and 3,983.59 is: 5,976.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302.74 : 18,456.79 = 3,983.59 : x
  2. Step 2: Convert to fraction form
    12,302.74/18,456.79 = 3,983.59/x
  3. Step 3: Cross multiply
    12,302.74x = 18,456.79 × 3,983.59
  4. Step 4: Simplify right side
    12,302.74x = 73,524,284.08
  5. Step 5: Solve for x
    x = 73,524,284.08/12,302.74
  6. Step 6: Final answer
    x = 5,976.25

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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.