Home / 7,696.91-10,621.79-4,160.12

Finding the Fourth Proportional to 7,696.91, 10,621.79 and 4,160.12

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Solution

The fourth proportional to 7,696.91, 10,621.79 and 4,160.12 is: 5,740.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,696.91 : 10,621.79 = 4,160.12 : x
  2. Step 2: Convert to fraction form
    7,696.91/10,621.79 = 4,160.12/x
  3. Step 3: Cross multiply
    7,696.91x = 10,621.79 × 4,160.12
  4. Step 4: Simplify right side
    7,696.91x = 44,187,847.11
  5. Step 5: Solve for x
    x = 44,187,847.11/7,696.91
  6. Step 6: Final answer
    x = 5,740.99

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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.