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Finding the Fourth Proportional to 26,669.01, 39,978.81 and 9,134.67

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Solution

The fourth proportional to 26,669.01, 39,978.81 and 9,134.67 is: 13,693.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,669.01 : 39,978.81 = 9,134.67 : x
  2. Step 2: Convert to fraction form
    26,669.01/39,978.81 = 9,134.67/x
  3. Step 3: Cross multiply
    26,669.01x = 39,978.81 × 9,134.67
  4. Step 4: Simplify right side
    26,669.01x = 365,193,236.34
  5. Step 5: Solve for x
    x = 365,193,236.34/26,669.01
  6. Step 6: Final answer
    x = 13,693.54

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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.