Home / 16,821.28-23,213.92-9,267.92

Finding the Fourth Proportional to 16,821.28, 23,213.92 and 9,267.92

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Solution

The fourth proportional to 16,821.28, 23,213.92 and 9,267.92 is: 12,790.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.28 : 23,213.92 = 9,267.92 : x
  2. Step 2: Convert to fraction form
    16,821.28/23,213.92 = 9,267.92/x
  3. Step 3: Cross multiply
    16,821.28x = 23,213.92 × 9,267.92
  4. Step 4: Simplify right side
    16,821.28x = 215,144,753.45
  5. Step 5: Solve for x
    x = 215,144,753.45/16,821.28
  6. Step 6: Final answer
    x = 12,790.03

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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.