Home / 8,982.30-13,471.05-3,138.30

Finding the Fourth Proportional to 8,982.30, 13,471.05 and 3,138.30

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Solution

The fourth proportional to 8,982.30, 13,471.05 and 3,138.30 is: 4,706.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,982.30 : 13,471.05 = 3,138.30 : x
  2. Step 2: Convert to fraction form
    8,982.30/13,471.05 = 3,138.30/x
  3. Step 3: Cross multiply
    8,982.30x = 13,471.05 × 3,138.30
  4. Step 4: Simplify right side
    8,982.30x = 42,276,196.22
  5. Step 5: Solve for x
    x = 42,276,196.22/8,982.30
  6. Step 6: Final answer
    x = 4,706.61

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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.