Home / 16,821.75-23,213.79-9,267.93

Finding the Fourth Proportional to 16,821.75, 23,213.79 and 9,267.93

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Solution

The fourth proportional to 16,821.75, 23,213.79 and 9,267.93 is: 12,789.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.75 : 23,213.79 = 9,267.93 : x
  2. Step 2: Convert to fraction form
    16,821.75/23,213.79 = 9,267.93/x
  3. Step 3: Cross multiply
    16,821.75x = 23,213.79 × 9,267.93
  4. Step 4: Simplify right side
    16,821.75x = 215,143,780.75
  5. Step 5: Solve for x
    x = 215,143,780.75/16,821.75
  6. Step 6: Final answer
    x = 12,789.62

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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.