Home / 10,628.46-15,942.69-4,778.24

Finding the Fourth Proportional to 10,628.46, 15,942.69 and 4,778.24

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Solution

The fourth proportional to 10,628.46, 15,942.69 and 4,778.24 is: 7,167.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.46 : 15,942.69 = 4,778.24 : x
  2. Step 2: Convert to fraction form
    10,628.46/15,942.69 = 4,778.24/x
  3. Step 3: Cross multiply
    10,628.46x = 15,942.69 × 4,778.24
  4. Step 4: Simplify right side
    10,628.46x = 76,177,919.35
  5. Step 5: Solve for x
    x = 76,177,919.35/10,628.46
  6. Step 6: Final answer
    x = 7,167.35

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Similar ratio
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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.