Home / 15,722.30-23,578.44-5,190.36

Finding the Fourth Proportional to 15,722.30, 23,578.44 and 5,190.36

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Solution

The fourth proportional to 15,722.30, 23,578.44 and 5,190.36 is: 7,783.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,722.30 : 23,578.44 = 5,190.36 : x
  2. Step 2: Convert to fraction form
    15,722.30/23,578.44 = 5,190.36/x
  3. Step 3: Cross multiply
    15,722.30x = 23,578.44 × 5,190.36
  4. Step 4: Simplify right side
    15,722.30x = 122,380,447.99
  5. Step 5: Solve for x
    x = 122,380,447.99/15,722.30
  6. Step 6: Final answer
    x = 7,783.88

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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.