Home / 18,353.39-25,338.20-12,083.99

Finding the Fourth Proportional to 18,353.39, 25,338.20 and 12,083.99

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Solution

The fourth proportional to 18,353.39, 25,338.20 and 12,083.99 is: 16,682.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,353.39 : 25,338.20 = 12,083.99 : x
  2. Step 2: Convert to fraction form
    18,353.39/25,338.20 = 12,083.99/x
  3. Step 3: Cross multiply
    18,353.39x = 25,338.20 × 12,083.99
  4. Step 4: Simplify right side
    18,353.39x = 306,186,368.31
  5. Step 5: Solve for x
    x = 306,186,368.31/18,353.39
  6. Step 6: Final answer
    x = 16,682.83

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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.