Home / 10,676.66-16,012.38-3,178.76

Finding the Fourth Proportional to 10,676.66, 16,012.38 and 3,178.76

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Solution

The fourth proportional to 10,676.66, 16,012.38 and 3,178.76 is: 4,767.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,676.66 : 16,012.38 = 3,178.76 : x
  2. Step 2: Convert to fraction form
    10,676.66/16,012.38 = 3,178.76/x
  3. Step 3: Cross multiply
    10,676.66x = 16,012.38 × 3,178.76
  4. Step 4: Simplify right side
    10,676.66x = 50,899,513.05
  5. Step 5: Solve for x
    x = 50,899,513.05/10,676.66
  6. Step 6: Final answer
    x = 4,767.36

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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.