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Finding the Fourth Proportional to 7,120.94, 10,683.79 and 4,007.03

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Solution

The fourth proportional to 7,120.94, 10,683.79 and 4,007.03 is: 6,011.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.94 : 10,683.79 = 4,007.03 : x
  2. Step 2: Convert to fraction form
    7,120.94/10,683.79 = 4,007.03/x
  3. Step 3: Cross multiply
    7,120.94x = 10,683.79 × 4,007.03
  4. Step 4: Simplify right side
    7,120.94x = 42,810,203.61
  5. Step 5: Solve for x
    x = 42,810,203.61/7,120.94
  6. Step 6: Final answer
    x = 6,011.88

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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.