Home / 18,701.36-25,800.14-13,039.46

Finding the Fourth Proportional to 18,701.36, 25,800.14 and 13,039.46

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Solution

The fourth proportional to 18,701.36, 25,800.14 and 13,039.46 is: 17,989.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.36 : 25,800.14 = 13,039.46 : x
  2. Step 2: Convert to fraction form
    18,701.36/25,800.14 = 13,039.46/x
  3. Step 3: Cross multiply
    18,701.36x = 25,800.14 × 13,039.46
  4. Step 4: Simplify right side
    18,701.36x = 336,419,797.12
  5. Step 5: Solve for x
    x = 336,419,797.12/18,701.36
  6. Step 6: Final answer
    x = 17,989.06

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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.