Home / 16,171.20-22,308.88-11,687.85

Finding the Fourth Proportional to 16,171.20, 22,308.88 and 11,687.85

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Solution

The fourth proportional to 16,171.20, 22,308.88 and 11,687.85 is: 16,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,171.20 : 22,308.88 = 11,687.85 : x
  2. Step 2: Convert to fraction form
    16,171.20/22,308.88 = 11,687.85/x
  3. Step 3: Cross multiply
    16,171.20x = 22,308.88 × 11,687.85
  4. Step 4: Simplify right side
    16,171.20x = 260,742,784.67
  5. Step 5: Solve for x
    x = 260,742,784.67/16,171.20
  6. Step 6: Final answer
    x = 16,123.90

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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.