Home / 11,121.30-16,660.35-6,182.10

Finding the Fourth Proportional to 11,121.30, 16,660.35 and 6,182.10

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Solution

The fourth proportional to 11,121.30, 16,660.35 and 6,182.10 is: 9,261.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.30 : 16,660.35 = 6,182.10 : x
  2. Step 2: Convert to fraction form
    11,121.30/16,660.35 = 6,182.10/x
  3. Step 3: Cross multiply
    11,121.30x = 16,660.35 × 6,182.10
  4. Step 4: Simplify right side
    11,121.30x = 102,995,949.74
  5. Step 5: Solve for x
    x = 102,995,949.74/11,121.30
  6. Step 6: Final answer
    x = 9,261.14

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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.