Home / 11,103.66-16,661.78-4,082.76

Finding the Fourth Proportional to 11,103.66, 16,661.78 and 4,082.76

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Solution

The fourth proportional to 11,103.66, 16,661.78 and 4,082.76 is: 6,126.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103.66 : 16,661.78 = 4,082.76 : x
  2. Step 2: Convert to fraction form
    11,103.66/16,661.78 = 4,082.76/x
  3. Step 3: Cross multiply
    11,103.66x = 16,661.78 × 4,082.76
  4. Step 4: Simplify right side
    11,103.66x = 68,026,048.91
  5. Step 5: Solve for x
    x = 68,026,048.91/11,103.66
  6. Step 6: Final answer
    x = 6,126.45

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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.