Home / 13,616.55-20,441.03-7,698.15

Finding the Fourth Proportional to 13,616.55, 20,441.03 and 7,698.15

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Solution

The fourth proportional to 13,616.55, 20,441.03 and 7,698.15 is: 11,556.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,616.55 : 20,441.03 = 7,698.15 : x
  2. Step 2: Convert to fraction form
    13,616.55/20,441.03 = 7,698.15/x
  3. Step 3: Cross multiply
    13,616.55x = 20,441.03 × 7,698.15
  4. Step 4: Simplify right side
    13,616.55x = 157,358,076.60
  5. Step 5: Solve for x
    x = 157,358,076.60/13,616.55
  6. Step 6: Final answer
    x = 11,556.38

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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.