Home / 13,169.43-18,176.58-8,693.73

Finding the Fourth Proportional to 13,169.43, 18,176.58 and 8,693.73

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Solution

The fourth proportional to 13,169.43, 18,176.58 and 8,693.73 is: 11,999.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169.43 : 18,176.58 = 8,693.73 : x
  2. Step 2: Convert to fraction form
    13,169.43/18,176.58 = 8,693.73/x
  3. Step 3: Cross multiply
    13,169.43x = 18,176.58 × 8,693.73
  4. Step 4: Simplify right side
    13,169.43x = 158,022,278.84
  5. Step 5: Solve for x
    x = 158,022,278.84/13,169.43
  6. Step 6: Final answer
    x = 11,999.17

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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.