Home / 12,767.80-17,584.32-10,998.76

Finding the Fourth Proportional to 12,767.80, 17,584.32 and 10,998.76

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Solution

The fourth proportional to 12,767.80, 17,584.32 and 10,998.76 is: 15,147.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,767.80 : 17,584.32 = 10,998.76 : x
  2. Step 2: Convert to fraction form
    12,767.80/17,584.32 = 10,998.76/x
  3. Step 3: Cross multiply
    12,767.80x = 17,584.32 × 10,998.76
  4. Step 4: Simplify right side
    12,767.80x = 193,405,715.44
  5. Step 5: Solve for x
    x = 193,405,715.44/12,767.80
  6. Step 6: Final answer
    x = 15,147.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.