Home / 6,891.08-10,323.45-5,311.58

Finding the Fourth Proportional to 6,891.08, 10,323.45 and 5,311.58

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Solution

The fourth proportional to 6,891.08, 10,323.45 and 5,311.58 is: 7,957.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.08 : 10,323.45 = 5,311.58 : x
  2. Step 2: Convert to fraction form
    6,891.08/10,323.45 = 5,311.58/x
  3. Step 3: Cross multiply
    6,891.08x = 10,323.45 × 5,311.58
  4. Step 4: Simplify right side
    6,891.08x = 54,833,778.93
  5. Step 5: Solve for x
    x = 54,833,778.93/6,891.08
  6. Step 6: Final answer
    x = 7,957.22

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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.