Home / 18,419.64-25,422.17-10,867.84

Finding the Fourth Proportional to 18,419.64, 25,422.17 and 10,867.84

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Solution

The fourth proportional to 18,419.64, 25,422.17 and 10,867.84 is: 14,999.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.64 : 25,422.17 = 10,867.84 : x
  2. Step 2: Convert to fraction form
    18,419.64/25,422.17 = 10,867.84/x
  3. Step 3: Cross multiply
    18,419.64x = 25,422.17 × 10,867.84
  4. Step 4: Simplify right side
    18,419.64x = 276,284,076.01
  5. Step 5: Solve for x
    x = 276,284,076.01/18,419.64
  6. Step 6: Final answer
    x = 14,999.43

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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.