Home / 7,718.62-10,651.65-4,181.83

Finding the Fourth Proportional to 7,718.62, 10,651.65 and 4,181.83

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Solution

The fourth proportional to 7,718.62, 10,651.65 and 4,181.83 is: 5,770.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.62 : 10,651.65 = 4,181.83 : x
  2. Step 2: Convert to fraction form
    7,718.62/10,651.65 = 4,181.83/x
  3. Step 3: Cross multiply
    7,718.62x = 10,651.65 × 4,181.83
  4. Step 4: Simplify right side
    7,718.62x = 44,543,389.52
  5. Step 5: Solve for x
    x = 44,543,389.52/7,718.62
  6. Step 6: Final answer
    x = 5,770.90

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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.