Home / 18,512.33-25,530.86-13,124.12

Finding the Fourth Proportional to 18,512.33, 25,530.86 and 13,124.12

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Solution

The fourth proportional to 18,512.33, 25,530.86 and 13,124.12 is: 18,099.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512.33 : 25,530.86 = 13,124.12 : x
  2. Step 2: Convert to fraction form
    18,512.33/25,530.86 = 13,124.12/x
  3. Step 3: Cross multiply
    18,512.33x = 25,530.86 × 13,124.12
  4. Step 4: Simplify right side
    18,512.33x = 335,069,975.50
  5. Step 5: Solve for x
    x = 335,069,975.50/18,512.33
  6. Step 6: Final answer
    x = 18,099.83

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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.