Home / 11,589.87-17,378.20-7,643.25

Finding the Fourth Proportional to 11,589.87, 17,378.20 and 7,643.25

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Solution

The fourth proportional to 11,589.87, 17,378.20 and 7,643.25 is: 11,460.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,589.87 : 17,378.20 = 7,643.25 : x
  2. Step 2: Convert to fraction form
    11,589.87/17,378.20 = 7,643.25/x
  3. Step 3: Cross multiply
    11,589.87x = 17,378.20 × 7,643.25
  4. Step 4: Simplify right side
    11,589.87x = 132,825,927.15
  5. Step 5: Solve for x
    x = 132,825,927.15/11,589.87
  6. Step 6: Final answer
    x = 11,460.52

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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.