Home / 13,752.41-18,974.97-8,086.68

Finding the Fourth Proportional to 13,752.41, 18,974.97 and 8,086.68

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Solution

The fourth proportional to 13,752.41, 18,974.97 and 8,086.68 is: 11,157.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.41 : 18,974.97 = 8,086.68 : x
  2. Step 2: Convert to fraction form
    13,752.41/18,974.97 = 8,086.68/x
  3. Step 3: Cross multiply
    13,752.41x = 18,974.97 × 8,086.68
  4. Step 4: Simplify right side
    13,752.41x = 153,444,510.40
  5. Step 5: Solve for x
    x = 153,444,510.40/13,752.41
  6. Step 6: Final answer
    x = 11,157.65

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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.