Home / 13,317.13-19,975.84-3,455.80

Finding the Fourth Proportional to 13,317.13, 19,975.84 and 3,455.80

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Solution

The fourth proportional to 13,317.13, 19,975.84 and 3,455.80 is: 5,183.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.13 : 19,975.84 = 3,455.80 : x
  2. Step 2: Convert to fraction form
    13,317.13/19,975.84 = 3,455.80/x
  3. Step 3: Cross multiply
    13,317.13x = 19,975.84 × 3,455.80
  4. Step 4: Simplify right side
    13,317.13x = 69,032,507.87
  5. Step 5: Solve for x
    x = 69,032,507.87/13,317.13
  6. Step 6: Final answer
    x = 5,183.74

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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.