Home / 13,647.14-20,475.72-5,751.65

Finding the Fourth Proportional to 13,647.14, 20,475.72 and 5,751.65

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Solution

The fourth proportional to 13,647.14, 20,475.72 and 5,751.65 is: 8,629.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.14 : 20,475.72 = 5,751.65 : x
  2. Step 2: Convert to fraction form
    13,647.14/20,475.72 = 5,751.65/x
  3. Step 3: Cross multiply
    13,647.14x = 20,475.72 × 5,751.65
  4. Step 4: Simplify right side
    13,647.14x = 117,769,174.94
  5. Step 5: Solve for x
    x = 117,769,174.94/13,647.14
  6. Step 6: Final answer
    x = 8,629.59

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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.