Home / 11,210.69-16,815.87-3,820.29

Finding the Fourth Proportional to 11,210.69, 16,815.87 and 3,820.29

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Solution

The fourth proportional to 11,210.69, 16,815.87 and 3,820.29 is: 5,730.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.69 : 16,815.87 = 3,820.29 : x
  2. Step 2: Convert to fraction form
    11,210.69/16,815.87 = 3,820.29/x
  3. Step 3: Cross multiply
    11,210.69x = 16,815.87 × 3,820.29
  4. Step 4: Simplify right side
    11,210.69x = 64,241,500.00
  5. Step 5: Solve for x
    x = 64,241,500.00/11,210.69
  6. Step 6: Final answer
    x = 5,730.38

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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.