Home / 13,173.99-19,761.01-5,382.80

Finding the Fourth Proportional to 13,173.99, 19,761.01 and 5,382.80

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Solution

The fourth proportional to 13,173.99, 19,761.01 and 5,382.80 is: 8,074.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.99 : 19,761.01 = 5,382.80 : x
  2. Step 2: Convert to fraction form
    13,173.99/19,761.01 = 5,382.80/x
  3. Step 3: Cross multiply
    13,173.99x = 19,761.01 × 5,382.80
  4. Step 4: Simplify right side
    13,173.99x = 106,369,667.90
  5. Step 5: Solve for x
    x = 106,369,667.90/13,173.99
  6. Step 6: Final answer
    x = 8,074.22

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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.