Home / 8,265.96-12,398.30-2,109.80

Finding the Fourth Proportional to 8,265.96, 12,398.30 and 2,109.80

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Solution

The fourth proportional to 8,265.96, 12,398.30 and 2,109.80 is: 3,164.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,265.96 : 12,398.30 = 2,109.80 : x
  2. Step 2: Convert to fraction form
    8,265.96/12,398.30 = 2,109.80/x
  3. Step 3: Cross multiply
    8,265.96x = 12,398.30 × 2,109.80
  4. Step 4: Simplify right side
    8,265.96x = 26,157,933.34
  5. Step 5: Solve for x
    x = 26,157,933.34/8,265.96
  6. Step 6: Final answer
    x = 3,164.54

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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.