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Finding the Fourth Proportional to 8,255.70, 11,393.01 and 4,671.45

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Solution

The fourth proportional to 8,255.70, 11,393.01 and 4,671.45 is: 6,446.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.70 : 11,393.01 = 4,671.45 : x
  2. Step 2: Convert to fraction form
    8,255.70/11,393.01 = 4,671.45/x
  3. Step 3: Cross multiply
    8,255.70x = 11,393.01 × 4,671.45
  4. Step 4: Simplify right side
    8,255.70x = 53,221,876.56
  5. Step 5: Solve for x
    x = 53,221,876.56/8,255.70
  6. Step 6: Final answer
    x = 6,446.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.