Home / 13,187.39-19,777.01-4,420.26

Finding the Fourth Proportional to 13,187.39, 19,777.01 and 4,420.26

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Solution

The fourth proportional to 13,187.39, 19,777.01 and 4,420.26 is: 6,629.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.39 : 19,777.01 = 4,420.26 : x
  2. Step 2: Convert to fraction form
    13,187.39/19,777.01 = 4,420.26/x
  3. Step 3: Cross multiply
    13,187.39x = 19,777.01 × 4,420.26
  4. Step 4: Simplify right side
    13,187.39x = 87,419,504.12
  5. Step 5: Solve for x
    x = 87,419,504.12/13,187.39
  6. Step 6: Final answer
    x = 6,629.02

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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.