Home / 11,428.44-15,769.90-6,392.92

Finding the Fourth Proportional to 11,428.44, 15,769.90 and 6,392.92

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Solution

The fourth proportional to 11,428.44, 15,769.90 and 6,392.92 is: 8,821.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.44 : 15,769.90 = 6,392.92 : x
  2. Step 2: Convert to fraction form
    11,428.44/15,769.90 = 6,392.92/x
  3. Step 3: Cross multiply
    11,428.44x = 15,769.90 × 6,392.92
  4. Step 4: Simplify right side
    11,428.44x = 100,815,709.11
  5. Step 5: Solve for x
    x = 100,815,709.11/11,428.44
  6. Step 6: Final answer
    x = 8,821.48

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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.