Home / 10,253.35-15,380.78-3,679.59

Finding the Fourth Proportional to 10,253.35, 15,380.78 and 3,679.59

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Solution

The fourth proportional to 10,253.35, 15,380.78 and 3,679.59 is: 5,519.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,253.35 : 15,380.78 = 3,679.59 : x
  2. Step 2: Convert to fraction form
    10,253.35/15,380.78 = 3,679.59/x
  3. Step 3: Cross multiply
    10,253.35x = 15,380.78 × 3,679.59
  4. Step 4: Simplify right side
    10,253.35x = 56,594,964.28
  5. Step 5: Solve for x
    x = 56,594,964.28/10,253.35
  6. Step 6: Final answer
    x = 5,519.66

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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.