Home / 12,824.24-19,250.94-11,978.60

Finding the Fourth Proportional to 12,824.24, 19,250.94 and 11,978.60

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Solution

The fourth proportional to 12,824.24, 19,250.94 and 11,978.60 is: 17,981.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,824.24 : 19,250.94 = 11,978.60 : x
  2. Step 2: Convert to fraction form
    12,824.24/19,250.94 = 11,978.60/x
  3. Step 3: Cross multiply
    12,824.24x = 19,250.94 × 11,978.60
  4. Step 4: Simplify right side
    12,824.24x = 230,599,309.88
  5. Step 5: Solve for x
    x = 230,599,309.88/12,824.24
  6. Step 6: Final answer
    x = 17,981.52

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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.