Home / 11,000.30-16,500.45-3,102.80

Finding the Fourth Proportional to 11,000.30, 16,500.45 and 3,102.80

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Solution

The fourth proportional to 11,000.30, 16,500.45 and 3,102.80 is: 4,654.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,000.30 : 16,500.45 = 3,102.80 : x
  2. Step 2: Convert to fraction form
    11,000.30/16,500.45 = 3,102.80/x
  3. Step 3: Cross multiply
    11,000.30x = 16,500.45 × 3,102.80
  4. Step 4: Simplify right side
    11,000.30x = 51,197,596.26
  5. Step 5: Solve for x
    x = 51,197,596.26/11,000.30
  6. Step 6: Final answer
    x = 4,654.20

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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.