Home / 16,163.28-22,281.24-9,871.44

Finding the Fourth Proportional to 16,163.28, 22,281.24 and 9,871.44

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Solution

The fourth proportional to 16,163.28, 22,281.24 and 9,871.44 is: 13,607.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,163.28 : 22,281.24 = 9,871.44 : x
  2. Step 2: Convert to fraction form
    16,163.28/22,281.24 = 9,871.44/x
  3. Step 3: Cross multiply
    16,163.28x = 22,281.24 × 9,871.44
  4. Step 4: Simplify right side
    16,163.28x = 219,947,923.79
  5. Step 5: Solve for x
    x = 219,947,923.79/16,163.28
  6. Step 6: Final answer
    x = 13,607.88

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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.