Home / 12,388.75-18,585.42-4,069.24

Finding the Fourth Proportional to 12,388.75, 18,585.42 and 4,069.24

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Solution

The fourth proportional to 12,388.75, 18,585.42 and 4,069.24 is: 6,104.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,388.75 : 18,585.42 = 4,069.24 : x
  2. Step 2: Convert to fraction form
    12,388.75/18,585.42 = 4,069.24/x
  3. Step 3: Cross multiply
    12,388.75x = 18,585.42 × 4,069.24
  4. Step 4: Simplify right side
    12,388.75x = 75,628,534.48
  5. Step 5: Solve for x
    x = 75,628,534.48/12,388.75
  6. Step 6: Final answer
    x = 6,104.61

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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.