Home / 15,408.29-23,128.38-9,489.44

Finding the Fourth Proportional to 15,408.29, 23,128.38 and 9,489.44

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Solution

The fourth proportional to 15,408.29, 23,128.38 and 9,489.44 is: 14,243.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.29 : 23,128.38 = 9,489.44 : x
  2. Step 2: Convert to fraction form
    15,408.29/23,128.38 = 9,489.44/x
  3. Step 3: Cross multiply
    15,408.29x = 23,128.38 × 9,489.44
  4. Step 4: Simplify right side
    15,408.29x = 219,475,258.67
  5. Step 5: Solve for x
    x = 219,475,258.67/15,408.29
  6. Step 6: Final answer
    x = 14,243.98

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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.