Home / 13,993.35-19,310.38-7,619.77

Finding the Fourth Proportional to 13,993.35, 19,310.38 and 7,619.77

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Solution

The fourth proportional to 13,993.35, 19,310.38 and 7,619.77 is: 10,515.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.35 : 19,310.38 = 7,619.77 : x
  2. Step 2: Convert to fraction form
    13,993.35/19,310.38 = 7,619.77/x
  3. Step 3: Cross multiply
    13,993.35x = 19,310.38 × 7,619.77
  4. Step 4: Simplify right side
    13,993.35x = 147,140,557.66
  5. Step 5: Solve for x
    x = 147,140,557.66/13,993.35
  6. Step 6: Final answer
    x = 10,515.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.