Home / 19,972.06-27,556.53-12,208.90

Finding the Fourth Proportional to 19,972.06, 27,556.53 and 12,208.90

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Solution

The fourth proportional to 19,972.06, 27,556.53 and 12,208.90 is: 16,845.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.06 : 27,556.53 = 12,208.90 : x
  2. Step 2: Convert to fraction form
    19,972.06/27,556.53 = 12,208.90/x
  3. Step 3: Cross multiply
    19,972.06x = 27,556.53 × 12,208.90
  4. Step 4: Simplify right side
    19,972.06x = 336,434,919.12
  5. Step 5: Solve for x
    x = 336,434,919.12/19,972.06
  6. Step 6: Final answer
    x = 16,845.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.