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Finding the Fourth Proportional to 16,922.79, 23,353.11 and 9,369.12

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Solution

The fourth proportional to 16,922.79, 23,353.11 and 9,369.12 is: 12,929.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,922.79 : 23,353.11 = 9,369.12 : x
  2. Step 2: Convert to fraction form
    16,922.79/23,353.11 = 9,369.12/x
  3. Step 3: Cross multiply
    16,922.79x = 23,353.11 × 9,369.12
  4. Step 4: Simplify right side
    16,922.79x = 218,798,089.96
  5. Step 5: Solve for x
    x = 218,798,089.96/16,922.79
  6. Step 6: Final answer
    x = 12,929.20

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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.