Home / 8,662.18-12,989.34-4,277.92

Finding the Fourth Proportional to 8,662.18, 12,989.34 and 4,277.92

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Solution

The fourth proportional to 8,662.18, 12,989.34 and 4,277.92 is: 6,414.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,662.18 : 12,989.34 = 4,277.92 : x
  2. Step 2: Convert to fraction form
    8,662.18/12,989.34 = 4,277.92/x
  3. Step 3: Cross multiply
    8,662.18x = 12,989.34 × 4,277.92
  4. Step 4: Simplify right side
    8,662.18x = 55,567,357.37
  5. Step 5: Solve for x
    x = 55,567,357.37/8,662.18
  6. Step 6: Final answer
    x = 6,414.94

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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.