Home / 10,747.99-16,121.58-4,422.63

Finding the Fourth Proportional to 10,747.99, 16,121.58 and 4,422.63

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Solution

The fourth proportional to 10,747.99, 16,121.58 and 4,422.63 is: 6,633.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,747.99 : 16,121.58 = 4,422.63 : x
  2. Step 2: Convert to fraction form
    10,747.99/16,121.58 = 4,422.63/x
  3. Step 3: Cross multiply
    10,747.99x = 16,121.58 × 4,422.63
  4. Step 4: Simplify right side
    10,747.99x = 71,299,783.36
  5. Step 5: Solve for x
    x = 71,299,783.36/10,747.99
  6. Step 6: Final answer
    x = 6,633.78

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Double scale
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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.