Home / 9,319.72-13,979.58-3,163.72

Finding the Fourth Proportional to 9,319.72, 13,979.58 and 3,163.72

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Solution

The fourth proportional to 9,319.72, 13,979.58 and 3,163.72 is: 4,745.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.72 : 13,979.58 = 3,163.72 : x
  2. Step 2: Convert to fraction form
    9,319.72/13,979.58 = 3,163.72/x
  3. Step 3: Cross multiply
    9,319.72x = 13,979.58 × 3,163.72
  4. Step 4: Simplify right side
    9,319.72x = 44,227,476.84
  5. Step 5: Solve for x
    x = 44,227,476.84/9,319.72
  6. Step 6: Final answer
    x = 4,745.58

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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.