Home / 13,172.85-19,758.60-9,481.68

Finding the Fourth Proportional to 13,172.85, 19,758.60 and 9,481.68

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Solution

The fourth proportional to 13,172.85, 19,758.60 and 9,481.68 is: 14,222.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.85 : 19,758.60 = 9,481.68 : x
  2. Step 2: Convert to fraction form
    13,172.85/19,758.60 = 9,481.68/x
  3. Step 3: Cross multiply
    13,172.85x = 19,758.60 × 9,481.68
  4. Step 4: Simplify right side
    13,172.85x = 187,344,722.45
  5. Step 5: Solve for x
    x = 187,344,722.45/13,172.85
  6. Step 6: Final answer
    x = 14,222.03

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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.