Home / 14,087.80-19,441.10-8,120.60

Finding the Fourth Proportional to 14,087.80, 19,441.10 and 8,120.60

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Solution

The fourth proportional to 14,087.80, 19,441.10 and 8,120.60 is: 11,206.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,087.80 : 19,441.10 = 8,120.60 : x
  2. Step 2: Convert to fraction form
    14,087.80/19,441.10 = 8,120.60/x
  3. Step 3: Cross multiply
    14,087.80x = 19,441.10 × 8,120.60
  4. Step 4: Simplify right side
    14,087.80x = 157,873,396.66
  5. Step 5: Solve for x
    x = 157,873,396.66/14,087.80
  6. Step 6: Final answer
    x = 11,206.39

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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.