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Finding the Fourth Proportional to 8,351.74, 12,529.05 and 2,805.62

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Solution

The fourth proportional to 8,351.74, 12,529.05 and 2,805.62 is: 4,208.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.74 : 12,529.05 = 2,805.62 : x
  2. Step 2: Convert to fraction form
    8,351.74/12,529.05 = 2,805.62/x
  3. Step 3: Cross multiply
    8,351.74x = 12,529.05 × 2,805.62
  4. Step 4: Simplify right side
    8,351.74x = 35,151,753.26
  5. Step 5: Solve for x
    x = 35,151,753.26/8,351.74
  6. Step 6: Final answer
    x = 4,208.92

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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.