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Finding the Fourth Proportional to 18,676.29, 28,008.32 and 6,827.34

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Solution

The fourth proportional to 18,676.29, 28,008.32 and 6,827.34 is: 10,238.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676.29 : 28,008.32 = 6,827.34 : x
  2. Step 2: Convert to fraction form
    18,676.29/28,008.32 = 6,827.34/x
  3. Step 3: Cross multiply
    18,676.29x = 28,008.32 × 6,827.34
  4. Step 4: Simplify right side
    18,676.29x = 191,222,289.33
  5. Step 5: Solve for x
    x = 191,222,289.33/18,676.29
  6. Step 6: Final answer
    x = 10,238.77

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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.