Home / 10,961.52-15,126.90-6,245.76

Finding the Fourth Proportional to 10,961.52, 15,126.90 and 6,245.76

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Solution

The fourth proportional to 10,961.52, 15,126.90 and 6,245.76 is: 8,619.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.52 : 15,126.90 = 6,245.76 : x
  2. Step 2: Convert to fraction form
    10,961.52/15,126.90 = 6,245.76/x
  3. Step 3: Cross multiply
    10,961.52x = 15,126.90 × 6,245.76
  4. Step 4: Simplify right side
    10,961.52x = 94,478,986.94
  5. Step 5: Solve for x
    x = 94,478,986.94/10,961.52
  6. Step 6: Final answer
    x = 8,619.15

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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.