Home / 8,094.56-11,151.34-7,720.88

Finding the Fourth Proportional to 8,094.56, 11,151.34 and 7,720.88

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Solution

The fourth proportional to 8,094.56, 11,151.34 and 7,720.88 is: 10,636.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,094.56 : 11,151.34 = 7,720.88 : x
  2. Step 2: Convert to fraction form
    8,094.56/11,151.34 = 7,720.88/x
  3. Step 3: Cross multiply
    8,094.56x = 11,151.34 × 7,720.88
  4. Step 4: Simplify right side
    8,094.56x = 86,098,082.92
  5. Step 5: Solve for x
    x = 86,098,082.92/8,094.56
  6. Step 6: Final answer
    x = 10,636.54

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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.