Home / 16,786.70-23,165.76-9,129.97

Finding the Fourth Proportional to 16,786.70, 23,165.76 and 9,129.97

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Solution

The fourth proportional to 16,786.70, 23,165.76 and 9,129.97 is: 12,599.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,786.70 : 23,165.76 = 9,129.97 : x
  2. Step 2: Convert to fraction form
    16,786.70/23,165.76 = 9,129.97/x
  3. Step 3: Cross multiply
    16,786.70x = 23,165.76 × 9,129.97
  4. Step 4: Simplify right side
    16,786.70x = 211,502,685.93
  5. Step 5: Solve for x
    x = 211,502,685.93/16,786.70
  6. Step 6: Final answer
    x = 12,599.42

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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.