Home / 7,777.28-11,654.96-5,581.16

Finding the Fourth Proportional to 7,777.28, 11,654.96 and 5,581.16

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Solution

The fourth proportional to 7,777.28, 11,654.96 and 5,581.16 is: 8,363.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.28 : 11,654.96 = 5,581.16 : x
  2. Step 2: Convert to fraction form
    7,777.28/11,654.96 = 5,581.16/x
  3. Step 3: Cross multiply
    7,777.28x = 11,654.96 × 5,581.16
  4. Step 4: Simplify right side
    7,777.28x = 65,048,196.55
  5. Step 5: Solve for x
    x = 65,048,196.55/7,777.28
  6. Step 6: Final answer
    x = 8,363.87

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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.