Home / 13,725.54-18,934.70-9,942.57

Finding the Fourth Proportional to 13,725.54, 18,934.70 and 9,942.57

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Solution

The fourth proportional to 13,725.54, 18,934.70 and 9,942.57 is: 13,716.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.54 : 18,934.70 = 9,942.57 : x
  2. Step 2: Convert to fraction form
    13,725.54/18,934.70 = 9,942.57/x
  3. Step 3: Cross multiply
    13,725.54x = 18,934.70 × 9,942.57
  4. Step 4: Simplify right side
    13,725.54x = 188,259,530.47
  5. Step 5: Solve for x
    x = 188,259,530.47/13,725.54
  6. Step 6: Final answer
    x = 13,716.00

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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.