Home / 12,166.27-18,161.40-10,690.04

Finding the Fourth Proportional to 12,166.27, 18,161.40 and 10,690.04

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Solution

The fourth proportional to 12,166.27, 18,161.40 and 10,690.04 is: 15,957.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.27 : 18,161.40 = 10,690.04 : x
  2. Step 2: Convert to fraction form
    12,166.27/18,161.40 = 10,690.04/x
  3. Step 3: Cross multiply
    12,166.27x = 18,161.40 × 10,690.04
  4. Step 4: Simplify right side
    12,166.27x = 194,146,177.95
  5. Step 5: Solve for x
    x = 194,146,177.95/12,166.27
  6. Step 6: Final answer
    x = 15,957.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.