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Finding the Fourth Proportional to 8,258.32, 12,391.62 and 4,363.12

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Solution

The fourth proportional to 8,258.32, 12,391.62 and 4,363.12 is: 6,546.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.32 : 12,391.62 = 4,363.12 : x
  2. Step 2: Convert to fraction form
    8,258.32/12,391.62 = 4,363.12/x
  3. Step 3: Cross multiply
    8,258.32x = 12,391.62 × 4,363.12
  4. Step 4: Simplify right side
    8,258.32x = 54,066,125.05
  5. Step 5: Solve for x
    x = 54,066,125.05/8,258.32
  6. Step 6: Final answer
    x = 6,546.87

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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.