Home / 12,600.16-17,382.24-9,786.40

Finding the Fourth Proportional to 12,600.16, 17,382.24 and 9,786.40

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Solution

The fourth proportional to 12,600.16, 17,382.24 and 9,786.40 is: 13,500.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,600.16 : 17,382.24 = 9,786.40 : x
  2. Step 2: Convert to fraction form
    12,600.16/17,382.24 = 9,786.40/x
  3. Step 3: Cross multiply
    12,600.16x = 17,382.24 × 9,786.40
  4. Step 4: Simplify right side
    12,600.16x = 170,109,553.54
  5. Step 5: Solve for x
    x = 170,109,553.54/12,600.16
  6. Step 6: Final answer
    x = 13,500.59

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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.