Home / 11,020.20-16,530.30-6,646.20

Finding the Fourth Proportional to 11,020.20, 16,530.30 and 6,646.20

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Solution

The fourth proportional to 11,020.20, 16,530.30 and 6,646.20 is: 9,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,020.20 : 16,530.30 = 6,646.20 : x
  2. Step 2: Convert to fraction form
    11,020.20/16,530.30 = 6,646.20/x
  3. Step 3: Cross multiply
    11,020.20x = 16,530.30 × 6,646.20
  4. Step 4: Simplify right side
    11,020.20x = 109,863,679.86
  5. Step 5: Solve for x
    x = 109,863,679.86/11,020.20
  6. Step 6: Final answer
    x = 9,969.30

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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.