Home / 13,751.12-20,622.64-7,173.92

Finding the Fourth Proportional to 13,751.12, 20,622.64 and 7,173.92

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Solution

The fourth proportional to 13,751.12, 20,622.64 and 7,173.92 is: 10,758.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.12 : 20,622.64 = 7,173.92 : x
  2. Step 2: Convert to fraction form
    13,751.12/20,622.64 = 7,173.92/x
  3. Step 3: Cross multiply
    13,751.12x = 20,622.64 × 7,173.92
  4. Step 4: Simplify right side
    13,751.12x = 147,945,169.55
  5. Step 5: Solve for x
    x = 147,945,169.55/13,751.12
  6. Step 6: Final answer
    x = 10,758.77

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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.