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Finding the Fourth Proportional to 8,338.00, 12,506.99 and 3,142.66

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Solution

The fourth proportional to 8,338.00, 12,506.99 and 3,142.66 is: 4,713.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.00 : 12,506.99 = 3,142.66 : x
  2. Step 2: Convert to fraction form
    8,338.00/12,506.99 = 3,142.66/x
  3. Step 3: Cross multiply
    8,338.00x = 12,506.99 × 3,142.66
  4. Step 4: Simplify right side
    8,338.00x = 39,305,154.66
  5. Step 5: Solve for x
    x = 39,305,154.66/8,338.00
  6. Step 6: Final answer
    x = 4,713.98

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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.