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Finding the Fourth Proportional to 16,078.70, 22,188.92 and 9,005.11

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Solution

The fourth proportional to 16,078.70, 22,188.92 and 9,005.11 is: 12,427.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,078.70 : 22,188.92 = 9,005.11 : x
  2. Step 2: Convert to fraction form
    16,078.70/22,188.92 = 9,005.11/x
  3. Step 3: Cross multiply
    16,078.70x = 22,188.92 × 9,005.11
  4. Step 4: Simplify right side
    16,078.70x = 199,813,564.88
  5. Step 5: Solve for x
    x = 199,813,564.88/16,078.70
  6. Step 6: Final answer
    x = 12,427.22

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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.