Home / 13,556.12-20,341.07-9,163.90

Finding the Fourth Proportional to 13,556.12, 20,341.07 and 9,163.90

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Solution

The fourth proportional to 13,556.12, 20,341.07 and 9,163.90 is: 13,750.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.12 : 20,341.07 = 9,163.90 : x
  2. Step 2: Convert to fraction form
    13,556.12/20,341.07 = 9,163.90/x
  3. Step 3: Cross multiply
    13,556.12x = 20,341.07 × 9,163.90
  4. Step 4: Simplify right side
    13,556.12x = 186,403,383.85
  5. Step 5: Solve for x
    x = 186,403,383.85/13,556.12
  6. Step 6: Final answer
    x = 13,750.50

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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.