Home / 16,871.11-23,291.84-11,213.53

Finding the Fourth Proportional to 16,871.11, 23,291.84 and 11,213.53

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Solution

The fourth proportional to 16,871.11, 23,291.84 and 11,213.53 is: 15,481.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,871.11 : 23,291.84 = 11,213.53 : x
  2. Step 2: Convert to fraction form
    16,871.11/23,291.84 = 11,213.53/x
  3. Step 3: Cross multiply
    16,871.11x = 23,291.84 × 11,213.53
  4. Step 4: Simplify right side
    16,871.11x = 261,183,746.60
  5. Step 5: Solve for x
    x = 261,183,746.60/16,871.11
  6. Step 6: Final answer
    x = 15,481.12

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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.