Home / 11,709.28-17,563.83-4,778.92

Finding the Fourth Proportional to 11,709.28, 17,563.83 and 4,778.92

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Solution

The fourth proportional to 11,709.28, 17,563.83 and 4,778.92 is: 7,168.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.28 : 17,563.83 = 4,778.92 : x
  2. Step 2: Convert to fraction form
    11,709.28/17,563.83 = 4,778.92/x
  3. Step 3: Cross multiply
    11,709.28x = 17,563.83 × 4,778.92
  4. Step 4: Simplify right side
    11,709.28x = 83,936,138.46
  5. Step 5: Solve for x
    x = 83,936,138.46/11,709.28
  6. Step 6: Final answer
    x = 7,168.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.