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Finding the Fourth Proportional to 9,168.51, 12,658.22 and 7,039.96

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Solution

The fourth proportional to 9,168.51, 12,658.22 and 7,039.96 is: 9,719.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168.51 : 12,658.22 = 7,039.96 : x
  2. Step 2: Convert to fraction form
    9,168.51/12,658.22 = 7,039.96/x
  3. Step 3: Cross multiply
    9,168.51x = 12,658.22 × 7,039.96
  4. Step 4: Simplify right side
    9,168.51x = 89,113,362.47
  5. Step 5: Solve for x
    x = 89,113,362.47/9,168.51
  6. Step 6: Final answer
    x = 9,719.50

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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.