Home / 12,161.73-16,782.75-6,857.04

Finding the Fourth Proportional to 12,161.73, 16,782.75 and 6,857.04

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Solution

The fourth proportional to 12,161.73, 16,782.75 and 6,857.04 is: 9,462.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.73 : 16,782.75 = 6,857.04 : x
  2. Step 2: Convert to fraction form
    12,161.73/16,782.75 = 6,857.04/x
  3. Step 3: Cross multiply
    12,161.73x = 16,782.75 × 6,857.04
  4. Step 4: Simplify right side
    12,161.73x = 115,079,988.06
  5. Step 5: Solve for x
    x = 115,079,988.06/12,161.73
  6. Step 6: Final answer
    x = 9,462.47

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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.