Home / 12,724.93-17,563.62-8,190.68

Finding the Fourth Proportional to 12,724.93, 17,563.62 and 8,190.68

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Solution

The fourth proportional to 12,724.93, 17,563.62 and 8,190.68 is: 11,305.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.93 : 17,563.62 = 8,190.68 : x
  2. Step 2: Convert to fraction form
    12,724.93/17,563.62 = 8,190.68/x
  3. Step 3: Cross multiply
    12,724.93x = 17,563.62 × 8,190.68
  4. Step 4: Simplify right side
    12,724.93x = 143,857,950.11
  5. Step 5: Solve for x
    x = 143,857,950.11/12,724.93
  6. Step 6: Final answer
    x = 11,305.21

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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.