Home / 8,318.46-12,477.90-2,475.12

Finding the Fourth Proportional to 8,318.46, 12,477.90 and 2,475.12

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Solution

The fourth proportional to 8,318.46, 12,477.90 and 2,475.12 is: 3,712.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.46 : 12,477.90 = 2,475.12 : x
  2. Step 2: Convert to fraction form
    8,318.46/12,477.90 = 2,475.12/x
  3. Step 3: Cross multiply
    8,318.46x = 12,477.90 × 2,475.12
  4. Step 4: Simplify right side
    8,318.46x = 30,884,299.85
  5. Step 5: Solve for x
    x = 30,884,299.85/8,318.46
  6. Step 6: Final answer
    x = 3,712.74

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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.