Home / 7,825.80-10,793.88-4,995.12

Finding the Fourth Proportional to 7,825.80, 10,793.88 and 4,995.12

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Solution

The fourth proportional to 7,825.80, 10,793.88 and 4,995.12 is: 6,889.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.80 : 10,793.88 = 4,995.12 : x
  2. Step 2: Convert to fraction form
    7,825.80/10,793.88 = 4,995.12/x
  3. Step 3: Cross multiply
    7,825.80x = 10,793.88 × 4,995.12
  4. Step 4: Simplify right side
    7,825.80x = 53,916,725.87
  5. Step 5: Solve for x
    x = 53,916,725.87/7,825.80
  6. Step 6: Final answer
    x = 6,889.61

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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.