Home / 7,855.49-10,833.12-5,161.97

Finding the Fourth Proportional to 7,855.49, 10,833.12 and 5,161.97

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Solution

The fourth proportional to 7,855.49, 10,833.12 and 5,161.97 is: 7,118.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.49 : 10,833.12 = 5,161.97 : x
  2. Step 2: Convert to fraction form
    7,855.49/10,833.12 = 5,161.97/x
  3. Step 3: Cross multiply
    7,855.49x = 10,833.12 × 5,161.97
  4. Step 4: Simplify right side
    7,855.49x = 55,920,186.28
  5. Step 5: Solve for x
    x = 55,920,186.28/7,855.49
  6. Step 6: Final answer
    x = 7,118.62

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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.