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Finding the Fourth Proportional to 8,682.60, 13,023.90 and 4,308.60

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Solution

The fourth proportional to 8,682.60, 13,023.90 and 4,308.60 is: 6,462.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.60 : 13,023.90 = 4,308.60 : x
  2. Step 2: Convert to fraction form
    8,682.60/13,023.90 = 4,308.60/x
  3. Step 3: Cross multiply
    8,682.60x = 13,023.90 × 4,308.60
  4. Step 4: Simplify right side
    8,682.60x = 56,114,775.54
  5. Step 5: Solve for x
    x = 56,114,775.54/8,682.60
  6. Step 6: Final answer
    x = 6,462.90

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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.