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Finding the Fourth Proportional to 8,679.44, 13,025.86 and 4,520.50

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Solution

The fourth proportional to 8,679.44, 13,025.86 and 4,520.50 is: 6,784.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.44 : 13,025.86 = 4,520.50 : x
  2. Step 2: Convert to fraction form
    8,679.44/13,025.86 = 4,520.50/x
  3. Step 3: Cross multiply
    8,679.44x = 13,025.86 × 4,520.50
  4. Step 4: Simplify right side
    8,679.44x = 58,883,400.13
  5. Step 5: Solve for x
    x = 58,883,400.13/8,679.44
  6. Step 6: Final answer
    x = 6,784.24

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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.