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Finding the Fourth Proportional to 8,567.69, 12,799.68 and 8,519.09

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Solution

The fourth proportional to 8,567.69, 12,799.68 and 8,519.09 is: 12,727.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,567.69 : 12,799.68 = 8,519.09 : x
  2. Step 2: Convert to fraction form
    8,567.69/12,799.68 = 8,519.09/x
  3. Step 3: Cross multiply
    8,567.69x = 12,799.68 × 8,519.09
  4. Step 4: Simplify right side
    8,567.69x = 109,041,529.95
  5. Step 5: Solve for x
    x = 109,041,529.95/8,567.69
  6. Step 6: Final answer
    x = 12,727.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.