Home / 13,993.26-19,310.94-7,705.64

Finding the Fourth Proportional to 13,993.26, 19,310.94 and 7,705.64

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Solution

The fourth proportional to 13,993.26, 19,310.94 and 7,705.64 is: 10,633.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.26 : 19,310.94 = 7,705.64 : x
  2. Step 2: Convert to fraction form
    13,993.26/19,310.94 = 7,705.64/x
  3. Step 3: Cross multiply
    13,993.26x = 19,310.94 × 7,705.64
  4. Step 4: Simplify right side
    13,993.26x = 148,803,151.70
  5. Step 5: Solve for x
    x = 148,803,151.70/13,993.26
  6. Step 6: Final answer
    x = 10,633.92

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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.