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Finding the Fourth Proportional to 6,462.18, 8,917.89 and 6,238.67

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Solution

The fourth proportional to 6,462.18, 8,917.89 and 6,238.67 is: 8,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,462.18 : 8,917.89 = 6,238.67 : x
  2. Step 2: Convert to fraction form
    6,462.18/8,917.89 = 6,238.67/x
  3. Step 3: Cross multiply
    6,462.18x = 8,917.89 × 6,238.67
  4. Step 4: Simplify right side
    6,462.18x = 55,635,785.05
  5. Step 5: Solve for x
    x = 55,635,785.05/6,462.18
  6. Step 6: Final answer
    x = 8,609.45

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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.