Home / 13,751.12-20,622.54-7,173.72

Finding the Fourth Proportional to 13,751.12, 20,622.54 and 7,173.72

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Solution

The fourth proportional to 13,751.12, 20,622.54 and 7,173.72 is: 10,758.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.12 : 20,622.54 = 7,173.72 : x
  2. Step 2: Convert to fraction form
    13,751.12/20,622.54 = 7,173.72/x
  3. Step 3: Cross multiply
    13,751.12x = 20,622.54 × 7,173.72
  4. Step 4: Simplify right side
    13,751.12x = 147,940,327.65
  5. Step 5: Solve for x
    x = 147,940,327.65/13,751.12
  6. Step 6: Final answer
    x = 10,758.42

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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.