Home / 8,255.06-12,383.81-2,990.46

Finding the Fourth Proportional to 8,255.06, 12,383.81 and 2,990.46

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Solution

The fourth proportional to 8,255.06, 12,383.81 and 2,990.46 is: 4,486.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.06 : 12,383.81 = 2,990.46 : x
  2. Step 2: Convert to fraction form
    8,255.06/12,383.81 = 2,990.46/x
  3. Step 3: Cross multiply
    8,255.06x = 12,383.81 × 2,990.46
  4. Step 4: Simplify right side
    8,255.06x = 37,033,273.50
  5. Step 5: Solve for x
    x = 37,033,273.50/8,255.06
  6. Step 6: Final answer
    x = 4,486.13

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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.