Home / 18,419.82-25,419.51-10,036.86

Finding the Fourth Proportional to 18,419.82, 25,419.51 and 10,036.86

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Solution

The fourth proportional to 18,419.82, 25,419.51 and 10,036.86 is: 13,850.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.82 : 25,419.51 = 10,036.86 : x
  2. Step 2: Convert to fraction form
    18,419.82/25,419.51 = 10,036.86/x
  3. Step 3: Cross multiply
    18,419.82x = 25,419.51 × 10,036.86
  4. Step 4: Simplify right side
    18,419.82x = 255,132,063.14
  5. Step 5: Solve for x
    x = 255,132,063.14/18,419.82
  6. Step 6: Final answer
    x = 13,850.95

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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.