Home / 16,942.81-23,381.97-9,389.96

Finding the Fourth Proportional to 16,942.81, 23,381.97 and 9,389.96

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Solution

The fourth proportional to 16,942.81, 23,381.97 and 9,389.96 is: 12,958.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,942.81 : 23,381.97 = 9,389.96 : x
  2. Step 2: Convert to fraction form
    16,942.81/23,381.97 = 9,389.96/x
  3. Step 3: Cross multiply
    16,942.81x = 23,381.97 × 9,389.96
  4. Step 4: Simplify right side
    16,942.81x = 219,555,763.02
  5. Step 5: Solve for x
    x = 219,555,763.02/16,942.81
  6. Step 6: Final answer
    x = 12,958.64

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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.