Home / 18,103.74-24,998.37-13,619.71

Finding the Fourth Proportional to 18,103.74, 24,998.37 and 13,619.71

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Solution

The fourth proportional to 18,103.74, 24,998.37 and 13,619.71 is: 18,806.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103.74 : 24,998.37 = 13,619.71 : x
  2. Step 2: Convert to fraction form
    18,103.74/24,998.37 = 13,619.71/x
  3. Step 3: Cross multiply
    18,103.74x = 24,998.37 × 13,619.71
  4. Step 4: Simplify right side
    18,103.74x = 340,470,606.66
  5. Step 5: Solve for x
    x = 340,470,606.66/18,103.74
  6. Step 6: Final answer
    x = 18,806.65

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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.