Home / 14,015.98-19,378.97-13,396.33

Finding the Fourth Proportional to 14,015.98, 19,378.97 and 13,396.33

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Solution

The fourth proportional to 14,015.98, 19,378.97 and 13,396.33 is: 18,522.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.98 : 19,378.97 = 13,396.33 : x
  2. Step 2: Convert to fraction form
    14,015.98/19,378.97 = 13,396.33/x
  3. Step 3: Cross multiply
    14,015.98x = 19,378.97 × 13,396.33
  4. Step 4: Simplify right side
    14,015.98x = 259,607,077.18
  5. Step 5: Solve for x
    x = 259,607,077.18/14,015.98
  6. Step 6: Final answer
    x = 18,522.22

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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.