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Finding the Fourth Proportional to 8,600.63, 11,863.83 and 5,408.87

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Solution

The fourth proportional to 8,600.63, 11,863.83 and 5,408.87 is: 7,461.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,600.63 : 11,863.83 = 5,408.87 : x
  2. Step 2: Convert to fraction form
    8,600.63/11,863.83 = 5,408.87/x
  3. Step 3: Cross multiply
    8,600.63x = 11,863.83 × 5,408.87
  4. Step 4: Simplify right side
    8,600.63x = 64,169,854.85
  5. Step 5: Solve for x
    x = 64,169,854.85/8,600.63
  6. Step 6: Final answer
    x = 7,461.07

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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.