Home / 8,231.50-12,347.39-2,388.70

Finding the Fourth Proportional to 8,231.50, 12,347.39 and 2,388.70

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Solution

The fourth proportional to 8,231.50, 12,347.39 and 2,388.70 is: 3,583.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.50 : 12,347.39 = 2,388.70 : x
  2. Step 2: Convert to fraction form
    8,231.50/12,347.39 = 2,388.70/x
  3. Step 3: Cross multiply
    8,231.50x = 12,347.39 × 2,388.70
  4. Step 4: Simplify right side
    8,231.50x = 29,494,210.49
  5. Step 5: Solve for x
    x = 29,494,210.49/8,231.50
  6. Step 6: Final answer
    x = 3,583.09

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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.