Home / 16,065.31-22,170.13-8,991.73

Finding the Fourth Proportional to 16,065.31, 22,170.13 and 8,991.73

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Solution

The fourth proportional to 16,065.31, 22,170.13 and 8,991.73 is: 12,408.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,065.31 : 22,170.13 = 8,991.73 : x
  2. Step 2: Convert to fraction form
    16,065.31/22,170.13 = 8,991.73/x
  3. Step 3: Cross multiply
    16,065.31x = 22,170.13 × 8,991.73
  4. Step 4: Simplify right side
    16,065.31x = 199,347,828.26
  5. Step 5: Solve for x
    x = 199,347,828.26/16,065.31
  6. Step 6: Final answer
    x = 12,408.59

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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.