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Finding the Fourth Proportional to 8,145.56, 11,240.91 and 4,419.56

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Solution

The fourth proportional to 8,145.56, 11,240.91 and 4,419.56 is: 6,099.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.56 : 11,240.91 = 4,419.56 : x
  2. Step 2: Convert to fraction form
    8,145.56/11,240.91 = 4,419.56/x
  3. Step 3: Cross multiply
    8,145.56x = 11,240.91 × 4,419.56
  4. Step 4: Simplify right side
    8,145.56x = 49,679,904.30
  5. Step 5: Solve for x
    x = 49,679,904.30/8,145.56
  6. Step 6: Final answer
    x = 6,099.01

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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.