Home / 19,508.78-29,266.82-7,822.92

Finding the Fourth Proportional to 19,508.78, 29,266.82 and 7,822.92

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Solution

The fourth proportional to 19,508.78, 29,266.82 and 7,822.92 is: 11,735.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,508.78 : 29,266.82 = 7,822.92 : x
  2. Step 2: Convert to fraction form
    19,508.78/29,266.82 = 7,822.92/x
  3. Step 3: Cross multiply
    19,508.78x = 29,266.82 × 7,822.92
  4. Step 4: Simplify right side
    19,508.78x = 228,951,991.51
  5. Step 5: Solve for x
    x = 228,951,991.51/19,508.78
  6. Step 6: Final answer
    x = 11,735.84

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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.