Home / 8,429.40-12,644.64-3,234.60

Finding the Fourth Proportional to 8,429.40, 12,644.64 and 3,234.60

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Solution

The fourth proportional to 8,429.40, 12,644.64 and 3,234.60 is: 4,852.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.40 : 12,644.64 = 3,234.60 : x
  2. Step 2: Convert to fraction form
    8,429.40/12,644.64 = 3,234.60/x
  3. Step 3: Cross multiply
    8,429.40x = 12,644.64 × 3,234.60
  4. Step 4: Simplify right side
    8,429.40x = 40,900,352.54
  5. Step 5: Solve for x
    x = 40,900,352.54/8,429.40
  6. Step 6: Final answer
    x = 4,852.11

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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.