Home / 18,373.97-25,356.35-13,766.60

Finding the Fourth Proportional to 18,373.97, 25,356.35 and 13,766.60

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Solution

The fourth proportional to 18,373.97, 25,356.35 and 13,766.60 is: 18,998.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,373.97 : 25,356.35 = 13,766.60 : x
  2. Step 2: Convert to fraction form
    18,373.97/25,356.35 = 13,766.60/x
  3. Step 3: Cross multiply
    18,373.97x = 25,356.35 × 13,766.60
  4. Step 4: Simplify right side
    18,373.97x = 349,070,825.72
  5. Step 5: Solve for x
    x = 349,070,825.72/18,373.97
  6. Step 6: Final answer
    x = 18,998.11

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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.