Home / 9,147.52-13,720.96-3,879.14

Finding the Fourth Proportional to 9,147.52, 13,720.96 and 3,879.14

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Solution

The fourth proportional to 9,147.52, 13,720.96 and 3,879.14 is: 5,818.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.52 : 13,720.96 = 3,879.14 : x
  2. Step 2: Convert to fraction form
    9,147.52/13,720.96 = 3,879.14/x
  3. Step 3: Cross multiply
    9,147.52x = 13,720.96 × 3,879.14
  4. Step 4: Simplify right side
    9,147.52x = 53,225,524.77
  5. Step 5: Solve for x
    x = 53,225,524.77/9,147.52
  6. Step 6: Final answer
    x = 5,818.57

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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.