Home / 10,114.38-15,171.56-3,188.88

Finding the Fourth Proportional to 10,114.38, 15,171.56 and 3,188.88

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Solution

The fourth proportional to 10,114.38, 15,171.56 and 3,188.88 is: 4,783.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,114.38 : 15,171.56 = 3,188.88 : x
  2. Step 2: Convert to fraction form
    10,114.38/15,171.56 = 3,188.88/x
  3. Step 3: Cross multiply
    10,114.38x = 15,171.56 × 3,188.88
  4. Step 4: Simplify right side
    10,114.38x = 48,380,284.25
  5. Step 5: Solve for x
    x = 48,380,284.25/10,114.38
  6. Step 6: Final answer
    x = 4,783.32

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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.