Home / 13,636.35-18,823.19-11,975.45

Finding the Fourth Proportional to 13,636.35, 18,823.19 and 11,975.45

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Solution

The fourth proportional to 13,636.35, 18,823.19 and 11,975.45 is: 16,530.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.35 : 18,823.19 = 11,975.45 : x
  2. Step 2: Convert to fraction form
    13,636.35/18,823.19 = 11,975.45/x
  3. Step 3: Cross multiply
    13,636.35x = 18,823.19 × 11,975.45
  4. Step 4: Simplify right side
    13,636.35x = 225,416,016.69
  5. Step 5: Solve for x
    x = 225,416,016.69/13,636.35
  6. Step 6: Final answer
    x = 16,530.52

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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.