Home / 13,147.25-19,705.26-7,589.09

Finding the Fourth Proportional to 13,147.25, 19,705.26 and 7,589.09

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Solution

The fourth proportional to 13,147.25, 19,705.26 and 7,589.09 is: 11,374.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.25 : 19,705.26 = 7,589.09 : x
  2. Step 2: Convert to fraction form
    13,147.25/19,705.26 = 7,589.09/x
  3. Step 3: Cross multiply
    13,147.25x = 19,705.26 × 7,589.09
  4. Step 4: Simplify right side
    13,147.25x = 149,544,991.61
  5. Step 5: Solve for x
    x = 149,544,991.61/13,147.25
  6. Step 6: Final answer
    x = 11,374.63

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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.