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Finding the Fourth Proportional to 16,191.64, 22,344.04 and 9,117.64

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Solution

The fourth proportional to 16,191.64, 22,344.04 and 9,117.64 is: 12,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,191.64 : 22,344.04 = 9,117.64 : x
  2. Step 2: Convert to fraction form
    16,191.64/22,344.04 = 9,117.64/x
  3. Step 3: Cross multiply
    16,191.64x = 22,344.04 × 9,117.64
  4. Step 4: Simplify right side
    16,191.64x = 203,724,912.87
  5. Step 5: Solve for x
    x = 203,724,912.87/16,191.64
  6. Step 6: Final answer
    x = 12,582.10

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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.