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Finding the Fourth Proportional to 8,777.70, 13,162.91 and 2,933.15

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Solution

The fourth proportional to 8,777.70, 13,162.91 and 2,933.15 is: 4,398.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.70 : 13,162.91 = 2,933.15 : x
  2. Step 2: Convert to fraction form
    8,777.70/13,162.91 = 2,933.15/x
  3. Step 3: Cross multiply
    8,777.70x = 13,162.91 × 2,933.15
  4. Step 4: Simplify right side
    8,777.70x = 38,608,708.99
  5. Step 5: Solve for x
    x = 38,608,708.99/8,777.70
  6. Step 6: Final answer
    x = 4,398.50

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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.