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Finding the Fourth Proportional to 10,137.92, 13,994.24 and 7,158.72

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Solution

The fourth proportional to 10,137.92, 13,994.24 and 7,158.72 is: 9,881.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,137.92 : 13,994.24 = 7,158.72 : x
  2. Step 2: Convert to fraction form
    10,137.92/13,994.24 = 7,158.72/x
  3. Step 3: Cross multiply
    10,137.92x = 13,994.24 × 7,158.72
  4. Step 4: Simplify right side
    10,137.92x = 100,180,845.77
  5. Step 5: Solve for x
    x = 100,180,845.77/10,137.92
  6. Step 6: Final answer
    x = 9,881.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.