Home / 13,906.41-19,192.46-7,938.95

Finding the Fourth Proportional to 13,906.41, 19,192.46 and 7,938.95

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Solution

The fourth proportional to 13,906.41, 19,192.46 and 7,938.95 is: 10,956.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.41 : 19,192.46 = 7,938.95 : x
  2. Step 2: Convert to fraction form
    13,906.41/19,192.46 = 7,938.95/x
  3. Step 3: Cross multiply
    13,906.41x = 19,192.46 × 7,938.95
  4. Step 4: Simplify right side
    13,906.41x = 152,367,844.66
  5. Step 5: Solve for x
    x = 152,367,844.66/13,906.41
  6. Step 6: Final answer
    x = 10,956.66

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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.