Home / 18,634.68-25,724.37-12,512.63

Finding the Fourth Proportional to 18,634.68, 25,724.37 and 12,512.63

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Solution

The fourth proportional to 18,634.68, 25,724.37 and 12,512.63 is: 17,273.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,634.68 : 25,724.37 = 12,512.63 : x
  2. Step 2: Convert to fraction form
    18,634.68/25,724.37 = 12,512.63/x
  3. Step 3: Cross multiply
    18,634.68x = 25,724.37 × 12,512.63
  4. Step 4: Simplify right side
    18,634.68x = 321,879,395.17
  5. Step 5: Solve for x
    x = 321,879,395.17/18,634.68
  6. Step 6: Final answer
    x = 17,273.14

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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.