Home / 18,610.78-25,682.56-10,113.04

Finding the Fourth Proportional to 18,610.78, 25,682.56 and 10,113.04

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Solution

The fourth proportional to 18,610.78, 25,682.56 and 10,113.04 is: 13,955.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.78 : 25,682.56 = 10,113.04 : x
  2. Step 2: Convert to fraction form
    18,610.78/25,682.56 = 10,113.04/x
  3. Step 3: Cross multiply
    18,610.78x = 25,682.56 × 10,113.04
  4. Step 4: Simplify right side
    18,610.78x = 259,728,667.09
  5. Step 5: Solve for x
    x = 259,728,667.09/18,610.78
  6. Step 6: Final answer
    x = 13,955.82

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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.