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Finding the Fourth Proportional to 8,360.91, 12,543.26 and 4,202.91

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Solution

The fourth proportional to 8,360.91, 12,543.26 and 4,202.91 is: 6,305.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.91 : 12,543.26 = 4,202.91 : x
  2. Step 2: Convert to fraction form
    8,360.91/12,543.26 = 4,202.91/x
  3. Step 3: Cross multiply
    8,360.91x = 12,543.26 × 4,202.91
  4. Step 4: Simplify right side
    8,360.91x = 52,718,171.87
  5. Step 5: Solve for x
    x = 52,718,171.87/8,360.91
  6. Step 6: Final answer
    x = 6,305.32

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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.