Home / 7,718.66-10,651.74-4,181.87

Finding the Fourth Proportional to 7,718.66, 10,651.74 and 4,181.87

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Solution

The fourth proportional to 7,718.66, 10,651.74 and 4,181.87 is: 5,770.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.66 : 10,651.74 = 4,181.87 : x
  2. Step 2: Convert to fraction form
    7,718.66/10,651.74 = 4,181.87/x
  3. Step 3: Cross multiply
    7,718.66x = 10,651.74 × 4,181.87
  4. Step 4: Simplify right side
    7,718.66x = 44,544,138.70
  5. Step 5: Solve for x
    x = 44,544,138.70/7,718.66
  6. Step 6: Final answer
    x = 5,770.97

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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.