Home / 8,718.57-12,033.38-5,181.11

Finding the Fourth Proportional to 8,718.57, 12,033.38 and 5,181.11

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Solution

The fourth proportional to 8,718.57, 12,033.38 and 5,181.11 is: 7,150.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.57 : 12,033.38 = 5,181.11 : x
  2. Step 2: Convert to fraction form
    8,718.57/12,033.38 = 5,181.11/x
  3. Step 3: Cross multiply
    8,718.57x = 12,033.38 × 5,181.11
  4. Step 4: Simplify right side
    8,718.57x = 62,346,179.38
  5. Step 5: Solve for x
    x = 62,346,179.38/8,718.57
  6. Step 6: Final answer
    x = 7,150.96

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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.