Home / 16,071.81-22,156.27-11,815.36

Finding the Fourth Proportional to 16,071.81, 22,156.27 and 11,815.36

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Solution

The fourth proportional to 16,071.81, 22,156.27 and 11,815.36 is: 16,288.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,071.81 : 22,156.27 = 11,815.36 : x
  2. Step 2: Convert to fraction form
    16,071.81/22,156.27 = 11,815.36/x
  3. Step 3: Cross multiply
    16,071.81x = 22,156.27 × 11,815.36
  4. Step 4: Simplify right side
    16,071.81x = 261,784,221.38
  5. Step 5: Solve for x
    x = 261,784,221.38/16,071.81
  6. Step 6: Final answer
    x = 16,288.41

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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.