Home / 14,610.78-20,163.33-8,322.75

Finding the Fourth Proportional to 14,610.78, 20,163.33 and 8,322.75

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Solution

The fourth proportional to 14,610.78, 20,163.33 and 8,322.75 is: 11,485.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,610.78 : 20,163.33 = 8,322.75 : x
  2. Step 2: Convert to fraction form
    14,610.78/20,163.33 = 8,322.75/x
  3. Step 3: Cross multiply
    14,610.78x = 20,163.33 × 8,322.75
  4. Step 4: Simplify right side
    14,610.78x = 167,814,354.76
  5. Step 5: Solve for x
    x = 167,814,354.76/14,610.78
  6. Step 6: Final answer
    x = 11,485.65

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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.