Home / 13,317.24-19,975.80-3,455.68

Finding the Fourth Proportional to 13,317.24, 19,975.80 and 3,455.68

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Solution

The fourth proportional to 13,317.24, 19,975.80 and 3,455.68 is: 5,183.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.24 : 19,975.80 = 3,455.68 : x
  2. Step 2: Convert to fraction form
    13,317.24/19,975.80 = 3,455.68/x
  3. Step 3: Cross multiply
    13,317.24x = 19,975.80 × 3,455.68
  4. Step 4: Simplify right side
    13,317.24x = 69,029,972.54
  5. Step 5: Solve for x
    x = 69,029,972.54/13,317.24
  6. Step 6: Final answer
    x = 5,183.50

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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.