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Finding the Fourth Proportional to 16,623, 22,941.36 and 9,171

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Solution

The fourth proportional to 16,623, 22,941.36 and 9,171 is: 12,656.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,623 : 22,941.36 = 9,171 : x
  2. Step 2: Convert to fraction form
    16,623/22,941.36 = 9,171/x
  3. Step 3: Cross multiply
    16,623x = 22,941.36 × 9,171
  4. Step 4: Simplify right side
    16,623x = 210,395,212.56
  5. Step 5: Solve for x
    x = 210,395,212.56/16,623
  6. Step 6: Final answer
    x = 12,656.87

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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.