Home / 8,258.76-12,380.84-6,319.62

Finding the Fourth Proportional to 8,258.76, 12,380.84 and 6,319.62

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Solution

The fourth proportional to 8,258.76, 12,380.84 and 6,319.62 is: 9,473.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.76 : 12,380.84 = 6,319.62 : x
  2. Step 2: Convert to fraction form
    8,258.76/12,380.84 = 6,319.62/x
  3. Step 3: Cross multiply
    8,258.76x = 12,380.84 × 6,319.62
  4. Step 4: Simplify right side
    8,258.76x = 78,242,204.08
  5. Step 5: Solve for x
    x = 78,242,204.08/8,258.76
  6. Step 6: Final answer
    x = 9,473.84

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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.