Home / 11,066.20-16,599.30-4,139.80

Finding the Fourth Proportional to 11,066.20, 16,599.30 and 4,139.80

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Solution

The fourth proportional to 11,066.20, 16,599.30 and 4,139.80 is: 6,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,066.20 : 16,599.30 = 4,139.80 : x
  2. Step 2: Convert to fraction form
    11,066.20/16,599.30 = 4,139.80/x
  3. Step 3: Cross multiply
    11,066.20x = 16,599.30 × 4,139.80
  4. Step 4: Simplify right side
    11,066.20x = 68,717,782.14
  5. Step 5: Solve for x
    x = 68,717,782.14/11,066.20
  6. Step 6: Final answer
    x = 6,209.70

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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.