Home / 8,170.90-12,258.68-4,012.11

Finding the Fourth Proportional to 8,170.90, 12,258.68 and 4,012.11

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Solution

The fourth proportional to 8,170.90, 12,258.68 and 4,012.11 is: 6,019.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.90 : 12,258.68 = 4,012.11 : x
  2. Step 2: Convert to fraction form
    8,170.90/12,258.68 = 4,012.11/x
  3. Step 3: Cross multiply
    8,170.90x = 12,258.68 × 4,012.11
  4. Step 4: Simplify right side
    8,170.90x = 49,183,116.61
  5. Step 5: Solve for x
    x = 49,183,116.61/8,170.90
  6. Step 6: Final answer
    x = 6,019.30

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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.