Home / 8,084.51-12,121.91-3,087.21

Finding the Fourth Proportional to 8,084.51, 12,121.91 and 3,087.21

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Solution

The fourth proportional to 8,084.51, 12,121.91 and 3,087.21 is: 4,628.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,084.51 : 12,121.91 = 3,087.21 : x
  2. Step 2: Convert to fraction form
    8,084.51/12,121.91 = 3,087.21/x
  3. Step 3: Cross multiply
    8,084.51x = 12,121.91 × 3,087.21
  4. Step 4: Simplify right side
    8,084.51x = 37,422,866.34
  5. Step 5: Solve for x
    x = 37,422,866.34/8,084.51
  6. Step 6: Final answer
    x = 4,628.96

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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.