Home / 10,961.10-15,126.39-6,245.64

Finding the Fourth Proportional to 10,961.10, 15,126.39 and 6,245.64

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Solution

The fourth proportional to 10,961.10, 15,126.39 and 6,245.64 is: 8,619.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.10 : 15,126.39 = 6,245.64 : x
  2. Step 2: Convert to fraction form
    10,961.10/15,126.39 = 6,245.64/x
  3. Step 3: Cross multiply
    10,961.10x = 15,126.39 × 6,245.64
  4. Step 4: Simplify right side
    10,961.10x = 94,473,986.44
  5. Step 5: Solve for x
    x = 94,473,986.44/10,961.10
  6. Step 6: Final answer
    x = 8,619.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.