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Finding the Fourth Proportional to 12,674.72, 19,007.22 and 8,767.28

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Solution

The fourth proportional to 12,674.72, 19,007.22 and 8,767.28 is: 13,147.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674.72 : 19,007.22 = 8,767.28 : x
  2. Step 2: Convert to fraction form
    12,674.72/19,007.22 = 8,767.28/x
  3. Step 3: Cross multiply
    12,674.72x = 19,007.22 × 8,767.28
  4. Step 4: Simplify right side
    12,674.72x = 166,641,619.76
  5. Step 5: Solve for x
    x = 166,641,619.76/12,674.72
  6. Step 6: Final answer
    x = 13,147.56

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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.