Home / 13,734.48-20,601.72-3,872.47

Finding the Fourth Proportional to 13,734.48, 20,601.72 and 3,872.47

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Solution

The fourth proportional to 13,734.48, 20,601.72 and 3,872.47 is: 5,808.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,734.48 : 20,601.72 = 3,872.47 : x
  2. Step 2: Convert to fraction form
    13,734.48/20,601.72 = 3,872.47/x
  3. Step 3: Cross multiply
    13,734.48x = 20,601.72 × 3,872.47
  4. Step 4: Simplify right side
    13,734.48x = 79,779,542.65
  5. Step 5: Solve for x
    x = 79,779,542.65/13,734.48
  6. Step 6: Final answer
    x = 5,808.71

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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.