Home / 8,349.89-11,520.24-4,812.62

Finding the Fourth Proportional to 8,349.89, 11,520.24 and 4,812.62

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Solution

The fourth proportional to 8,349.89, 11,520.24 and 4,812.62 is: 6,639.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,349.89 : 11,520.24 = 4,812.62 : x
  2. Step 2: Convert to fraction form
    8,349.89/11,520.24 = 4,812.62/x
  3. Step 3: Cross multiply
    8,349.89x = 11,520.24 × 4,812.62
  4. Step 4: Simplify right side
    8,349.89x = 55,442,537.43
  5. Step 5: Solve for x
    x = 55,442,537.43/8,349.89
  6. Step 6: Final answer
    x = 6,639.91

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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.