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Finding the Fourth Proportional to 8,343.32, 12,529.28 and 7,408.37

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Solution

The fourth proportional to 8,343.32, 12,529.28 and 7,408.37 is: 11,125.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.32 : 12,529.28 = 7,408.37 : x
  2. Step 2: Convert to fraction form
    8,343.32/12,529.28 = 7,408.37/x
  3. Step 3: Cross multiply
    8,343.32x = 12,529.28 × 7,408.37
  4. Step 4: Simplify right side
    8,343.32x = 92,821,542.07
  5. Step 5: Solve for x
    x = 92,821,542.07/8,343.32
  6. Step 6: Final answer
    x = 11,125.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.