Home / 18,310.39-27,434.20-12,295.19

Finding the Fourth Proportional to 18,310.39, 27,434.20 and 12,295.19

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Solution

The fourth proportional to 18,310.39, 27,434.20 and 12,295.19 is: 18,421.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.39 : 27,434.20 = 12,295.19 : x
  2. Step 2: Convert to fraction form
    18,310.39/27,434.20 = 12,295.19/x
  3. Step 3: Cross multiply
    18,310.39x = 27,434.20 × 12,295.19
  4. Step 4: Simplify right side
    18,310.39x = 337,308,701.50
  5. Step 5: Solve for x
    x = 337,308,701.50/18,310.39
  6. Step 6: Final answer
    x = 18,421.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.