Home / 10,555.38-15,835.32-3,160.44

Finding the Fourth Proportional to 10,555.38, 15,835.32 and 3,160.44

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Solution

The fourth proportional to 10,555.38, 15,835.32 and 3,160.44 is: 4,741.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555.38 : 15,835.32 = 3,160.44 : x
  2. Step 2: Convert to fraction form
    10,555.38/15,835.32 = 3,160.44/x
  3. Step 3: Cross multiply
    10,555.38x = 15,835.32 × 3,160.44
  4. Step 4: Simplify right side
    10,555.38x = 50,046,578.74
  5. Step 5: Solve for x
    x = 50,046,578.74/10,555.38
  6. Step 6: Final answer
    x = 4,741.33

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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.