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Finding the Fourth Proportional to 10,745.66, 16,103.19 and 8,394.86

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Solution

The fourth proportional to 10,745.66, 16,103.19 and 8,394.86 is: 12,580.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,745.66 : 16,103.19 = 8,394.86 : x
  2. Step 2: Convert to fraction form
    10,745.66/16,103.19 = 8,394.86/x
  3. Step 3: Cross multiply
    10,745.66x = 16,103.19 × 8,394.86
  4. Step 4: Simplify right side
    10,745.66x = 135,184,025.60
  5. Step 5: Solve for x
    x = 135,184,025.60/10,745.66
  6. Step 6: Final answer
    x = 12,580.34

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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.