Home / 18,610.47-25,682.62-10,112.60

Finding the Fourth Proportional to 18,610.47, 25,682.62 and 10,112.60

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Solution

The fourth proportional to 18,610.47, 25,682.62 and 10,112.60 is: 13,955.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.47 : 25,682.62 = 10,112.60 : x
  2. Step 2: Convert to fraction form
    18,610.47/25,682.62 = 10,112.60/x
  3. Step 3: Cross multiply
    18,610.47x = 25,682.62 × 10,112.60
  4. Step 4: Simplify right side
    18,610.47x = 259,717,890.36
  5. Step 5: Solve for x
    x = 259,717,890.36/18,610.47
  6. Step 6: Final answer
    x = 13,955.47

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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.