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Finding the Fourth Proportional to 6,891.92, 10,332.09 and 5,718.63

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Solution

The fourth proportional to 6,891.92, 10,332.09 and 5,718.63 is: 8,573.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.92 : 10,332.09 = 5,718.63 : x
  2. Step 2: Convert to fraction form
    6,891.92/10,332.09 = 5,718.63/x
  3. Step 3: Cross multiply
    6,891.92x = 10,332.09 × 5,718.63
  4. Step 4: Simplify right side
    6,891.92x = 59,085,399.84
  5. Step 5: Solve for x
    x = 59,085,399.84/6,891.92
  6. Step 6: Final answer
    x = 8,573.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.