Home / 13,622.09-20,431.58-4,735.71

Finding the Fourth Proportional to 13,622.09, 20,431.58 and 4,735.71

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Solution

The fourth proportional to 13,622.09, 20,431.58 and 4,735.71 is: 7,103.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.09 : 20,431.58 = 4,735.71 : x
  2. Step 2: Convert to fraction form
    13,622.09/20,431.58 = 4,735.71/x
  3. Step 3: Cross multiply
    13,622.09x = 20,431.58 × 4,735.71
  4. Step 4: Simplify right side
    13,622.09x = 96,758,014.04
  5. Step 5: Solve for x
    x = 96,758,014.04/13,622.09
  6. Step 6: Final answer
    x = 7,103.03

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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.