Home / 14,069.36-19,420.62-8,103.44

Finding the Fourth Proportional to 14,069.36, 19,420.62 and 8,103.44

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Solution

The fourth proportional to 14,069.36, 19,420.62 and 8,103.44 is: 11,185.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,069.36 : 19,420.62 = 8,103.44 : x
  2. Step 2: Convert to fraction form
    14,069.36/19,420.62 = 8,103.44/x
  3. Step 3: Cross multiply
    14,069.36x = 19,420.62 × 8,103.44
  4. Step 4: Simplify right side
    14,069.36x = 157,373,828.93
  5. Step 5: Solve for x
    x = 157,373,828.93/14,069.36
  6. Step 6: Final answer
    x = 11,185.57

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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.