Home / 10,519.16-15,778.39-4,277.33

Finding the Fourth Proportional to 10,519.16, 15,778.39 and 4,277.33

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Solution

The fourth proportional to 10,519.16, 15,778.39 and 4,277.33 is: 6,415.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.16 : 15,778.39 = 4,277.33 : x
  2. Step 2: Convert to fraction form
    10,519.16/15,778.39 = 4,277.33/x
  3. Step 3: Cross multiply
    10,519.16x = 15,778.39 × 4,277.33
  4. Step 4: Simplify right side
    10,519.16x = 67,489,380.90
  5. Step 5: Solve for x
    x = 67,489,380.90/10,519.16
  6. Step 6: Final answer
    x = 6,415.85

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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.