Home / 10,542.90-15,809.48-3,145.44

Finding the Fourth Proportional to 10,542.90, 15,809.48 and 3,145.44

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Solution

The fourth proportional to 10,542.90, 15,809.48 and 3,145.44 is: 4,716.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,542.90 : 15,809.48 = 3,145.44 : x
  2. Step 2: Convert to fraction form
    10,542.90/15,809.48 = 3,145.44/x
  3. Step 3: Cross multiply
    10,542.90x = 15,809.48 × 3,145.44
  4. Step 4: Simplify right side
    10,542.90x = 49,727,770.77
  5. Step 5: Solve for x
    x = 49,727,770.77/10,542.90
  6. Step 6: Final answer
    x = 4,716.71

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1.5x scale

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.