Home / 11,580.20-17,370.30-2,815.05

Finding the Fourth Proportional to 11,580.20, 17,370.30 and 2,815.05

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Solution

The fourth proportional to 11,580.20, 17,370.30 and 2,815.05 is: 4,222.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.20 : 17,370.30 = 2,815.05 : x
  2. Step 2: Convert to fraction form
    11,580.20/17,370.30 = 2,815.05/x
  3. Step 3: Cross multiply
    11,580.20x = 17,370.30 × 2,815.05
  4. Step 4: Simplify right side
    11,580.20x = 48,898,338.71
  5. Step 5: Solve for x
    x = 48,898,338.71/11,580.20
  6. Step 6: Final answer
    x = 4,222.58

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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.