Home / 8,819.40-12,175.74-6,165.84

Finding the Fourth Proportional to 8,819.40, 12,175.74 and 6,165.84

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Solution

The fourth proportional to 8,819.40, 12,175.74 and 6,165.84 is: 8,512.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.40 : 12,175.74 = 6,165.84 : x
  2. Step 2: Convert to fraction form
    8,819.40/12,175.74 = 6,165.84/x
  3. Step 3: Cross multiply
    8,819.40x = 12,175.74 × 6,165.84
  4. Step 4: Simplify right side
    8,819.40x = 75,073,664.72
  5. Step 5: Solve for x
    x = 75,073,664.72/8,819.40
  6. Step 6: Final answer
    x = 8,512.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.