Home / 8,438.46-11,644.83-4,661.70

Finding the Fourth Proportional to 8,438.46, 11,644.83 and 4,661.70

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Solution

The fourth proportional to 8,438.46, 11,644.83 and 4,661.70 is: 6,433.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.46 : 11,644.83 = 4,661.70 : x
  2. Step 2: Convert to fraction form
    8,438.46/11,644.83 = 4,661.70/x
  3. Step 3: Cross multiply
    8,438.46x = 11,644.83 × 4,661.70
  4. Step 4: Simplify right side
    8,438.46x = 54,284,704.01
  5. Step 5: Solve for x
    x = 54,284,704.01/8,438.46
  6. Step 6: Final answer
    x = 6,433.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.