Home / 19,819.09-27,355.52-12,261.03

Finding the Fourth Proportional to 19,819.09, 27,355.52 and 12,261.03

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Solution

The fourth proportional to 19,819.09, 27,355.52 and 12,261.03 is: 16,923.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.09 : 27,355.52 = 12,261.03 : x
  2. Step 2: Convert to fraction form
    19,819.09/27,355.52 = 12,261.03/x
  3. Step 3: Cross multiply
    19,819.09x = 27,355.52 × 12,261.03
  4. Step 4: Simplify right side
    19,819.09x = 335,406,851.39
  5. Step 5: Solve for x
    x = 335,406,851.39/19,819.09
  6. Step 6: Final answer
    x = 16,923.42

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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.