Home / 11,990.35-17,983.90-3,225.79

Finding the Fourth Proportional to 11,990.35, 17,983.90 and 3,225.79

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Solution

The fourth proportional to 11,990.35, 17,983.90 and 3,225.79 is: 4,838.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.35 : 17,983.90 = 3,225.79 : x
  2. Step 2: Convert to fraction form
    11,990.35/17,983.90 = 3,225.79/x
  3. Step 3: Cross multiply
    11,990.35x = 17,983.90 × 3,225.79
  4. Step 4: Simplify right side
    11,990.35x = 58,012,284.78
  5. Step 5: Solve for x
    x = 58,012,284.78/11,990.35
  6. Step 6: Final answer
    x = 4,838.25

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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.