Home / 8,318.46-12,469.40-4,622.34

Finding the Fourth Proportional to 8,318.46, 12,469.40 and 4,622.34

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Solution

The fourth proportional to 8,318.46, 12,469.40 and 4,622.34 is: 6,928.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.46 : 12,469.40 = 4,622.34 : x
  2. Step 2: Convert to fraction form
    8,318.46/12,469.40 = 4,622.34/x
  3. Step 3: Cross multiply
    8,318.46x = 12,469.40 × 4,622.34
  4. Step 4: Simplify right side
    8,318.46x = 57,637,806.40
  5. Step 5: Solve for x
    x = 57,637,806.40/8,318.46
  6. Step 6: Final answer
    x = 6,928.90

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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.