Home / 10,161.87-15,242.64-2,766.48

Finding the Fourth Proportional to 10,161.87, 15,242.64 and 2,766.48

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Solution

The fourth proportional to 10,161.87, 15,242.64 and 2,766.48 is: 4,149.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,161.87 : 15,242.64 = 2,766.48 : x
  2. Step 2: Convert to fraction form
    10,161.87/15,242.64 = 2,766.48/x
  3. Step 3: Cross multiply
    10,161.87x = 15,242.64 × 2,766.48
  4. Step 4: Simplify right side
    10,161.87x = 42,168,458.71
  5. Step 5: Solve for x
    x = 42,168,458.71/10,161.87
  6. Step 6: Final answer
    x = 4,149.68

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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.