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Finding the Fourth Proportional to 8,364.34, 12,546.15 and 2,520.82

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Solution

The fourth proportional to 8,364.34, 12,546.15 and 2,520.82 is: 3,781.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.34 : 12,546.15 = 2,520.82 : x
  2. Step 2: Convert to fraction form
    8,364.34/12,546.15 = 2,520.82/x
  3. Step 3: Cross multiply
    8,364.34x = 12,546.15 × 2,520.82
  4. Step 4: Simplify right side
    8,364.34x = 31,626,585.84
  5. Step 5: Solve for x
    x = 31,626,585.84/8,364.34
  6. Step 6: Final answer
    x = 3,781.12

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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.