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Finding the Fourth Proportional to 8,630.70, 12,944.22 and 2,784.12

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Solution

The fourth proportional to 8,630.70, 12,944.22 and 2,784.12 is: 4,175.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.70 : 12,944.22 = 2,784.12 : x
  2. Step 2: Convert to fraction form
    8,630.70/12,944.22 = 2,784.12/x
  3. Step 3: Cross multiply
    8,630.70x = 12,944.22 × 2,784.12
  4. Step 4: Simplify right side
    8,630.70x = 36,038,261.79
  5. Step 5: Solve for x
    x = 36,038,261.79/8,630.70
  6. Step 6: Final answer
    x = 4,175.59

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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.