Home / 10,778.28-16,172.85-4,936.26

Finding the Fourth Proportional to 10,778.28, 16,172.85 and 4,936.26

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Solution

The fourth proportional to 10,778.28, 16,172.85 and 4,936.26 is: 7,406.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.28 : 16,172.85 = 4,936.26 : x
  2. Step 2: Convert to fraction form
    10,778.28/16,172.85 = 4,936.26/x
  3. Step 3: Cross multiply
    10,778.28x = 16,172.85 × 4,936.26
  4. Step 4: Simplify right side
    10,778.28x = 79,833,392.54
  5. Step 5: Solve for x
    x = 79,833,392.54/10,778.28
  6. Step 6: Final answer
    x = 7,406.88

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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.