Home / 18,324.39-25,308.37-12,345.68

Finding the Fourth Proportional to 18,324.39, 25,308.37 and 12,345.68

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Solution

The fourth proportional to 18,324.39, 25,308.37 and 12,345.68 is: 17,050.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.39 : 25,308.37 = 12,345.68 : x
  2. Step 2: Convert to fraction form
    18,324.39/25,308.37 = 12,345.68/x
  3. Step 3: Cross multiply
    18,324.39x = 25,308.37 × 12,345.68
  4. Step 4: Simplify right side
    18,324.39x = 312,448,910.80
  5. Step 5: Solve for x
    x = 312,448,910.80/18,324.39
  6. Step 6: Final answer
    x = 17,050.99

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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.