Home / 13,761.29-18,991.16-8,096.31

Finding the Fourth Proportional to 13,761.29, 18,991.16 and 8,096.31

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Solution

The fourth proportional to 13,761.29, 18,991.16 and 8,096.31 is: 11,173.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.29 : 18,991.16 = 8,096.31 : x
  2. Step 2: Convert to fraction form
    13,761.29/18,991.16 = 8,096.31/x
  3. Step 3: Cross multiply
    13,761.29x = 18,991.16 × 8,096.31
  4. Step 4: Simplify right side
    13,761.29x = 153,758,318.62
  5. Step 5: Solve for x
    x = 153,758,318.62/13,761.29
  6. Step 6: Final answer
    x = 11,173.25

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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.