Home / 9,313.61-13,979.18-3,396.21

Finding the Fourth Proportional to 9,313.61, 13,979.18 and 3,396.21

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Solution

The fourth proportional to 9,313.61, 13,979.18 and 3,396.21 is: 5,097.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,313.61 : 13,979.18 = 3,396.21 : x
  2. Step 2: Convert to fraction form
    9,313.61/13,979.18 = 3,396.21/x
  3. Step 3: Cross multiply
    9,313.61x = 13,979.18 × 3,396.21
  4. Step 4: Simplify right side
    9,313.61x = 47,476,213.93
  5. Step 5: Solve for x
    x = 47,476,213.93/9,313.61
  6. Step 6: Final answer
    x = 5,097.51

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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.