Home / 19,777.82-27,295.23-11,819.88

Finding the Fourth Proportional to 19,777.82, 27,295.23 and 11,819.88

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Solution

The fourth proportional to 19,777.82, 27,295.23 and 11,819.88 is: 16,312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,777.82 : 27,295.23 = 11,819.88 : x
  2. Step 2: Convert to fraction form
    19,777.82/27,295.23 = 11,819.88/x
  3. Step 3: Cross multiply
    19,777.82x = 27,295.23 × 11,819.88
  4. Step 4: Simplify right side
    19,777.82x = 322,626,343.17
  5. Step 5: Solve for x
    x = 322,626,343.17/19,777.82
  6. Step 6: Final answer
    x = 16,312.54

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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.