Home / 11,051.20-16,582.20-5,206.80

Finding the Fourth Proportional to 11,051.20, 16,582.20 and 5,206.80

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Solution

The fourth proportional to 11,051.20, 16,582.20 and 5,206.80 is: 7,812.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,051.20 : 16,582.20 = 5,206.80 : x
  2. Step 2: Convert to fraction form
    11,051.20/16,582.20 = 5,206.80/x
  3. Step 3: Cross multiply
    11,051.20x = 16,582.20 × 5,206.80
  4. Step 4: Simplify right side
    11,051.20x = 86,340,198.96
  5. Step 5: Solve for x
    x = 86,340,198.96/11,051.20
  6. Step 6: Final answer
    x = 7,812.74

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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.