Home / 14,087.22-21,129.42-3,698.97

Finding the Fourth Proportional to 14,087.22, 21,129.42 and 3,698.97

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Solution

The fourth proportional to 14,087.22, 21,129.42 and 3,698.97 is: 5,548.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,087.22 : 21,129.42 = 3,698.97 : x
  2. Step 2: Convert to fraction form
    14,087.22/21,129.42 = 3,698.97/x
  3. Step 3: Cross multiply
    14,087.22x = 21,129.42 × 3,698.97
  4. Step 4: Simplify right side
    14,087.22x = 78,157,090.70
  5. Step 5: Solve for x
    x = 78,157,090.70/14,087.22
  6. Step 6: Final answer
    x = 5,548.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.