Home / 13,678.88-18,869.56-9,194.92

Finding the Fourth Proportional to 13,678.88, 18,869.56 and 9,194.92

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Solution

The fourth proportional to 13,678.88, 18,869.56 and 9,194.92 is: 12,684.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,678.88 : 18,869.56 = 9,194.92 : x
  2. Step 2: Convert to fraction form
    13,678.88/18,869.56 = 9,194.92/x
  3. Step 3: Cross multiply
    13,678.88x = 18,869.56 × 9,194.92
  4. Step 4: Simplify right side
    13,678.88x = 173,504,024.47
  5. Step 5: Solve for x
    x = 173,504,024.47/13,678.88
  6. Step 6: Final answer
    x = 12,684.09

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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.