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Finding the Fourth Proportional to 19,675.78, 27,151.78 and 10,723.09

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Solution

The fourth proportional to 19,675.78, 27,151.78 and 10,723.09 is: 14,797.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,675.78 : 27,151.78 = 10,723.09 : x
  2. Step 2: Convert to fraction form
    19,675.78/27,151.78 = 10,723.09/x
  3. Step 3: Cross multiply
    19,675.78x = 27,151.78 × 10,723.09
  4. Step 4: Simplify right side
    19,675.78x = 291,150,980.60
  5. Step 5: Solve for x
    x = 291,150,980.60/19,675.78
  6. Step 6: Final answer
    x = 14,797.43

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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.