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Finding the Fourth Proportional to 12,313.14, 16,991.55 and 7,007.37

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Solution

The fourth proportional to 12,313.14, 16,991.55 and 7,007.37 is: 9,669.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.14 : 16,991.55 = 7,007.37 : x
  2. Step 2: Convert to fraction form
    12,313.14/16,991.55 = 7,007.37/x
  3. Step 3: Cross multiply
    12,313.14x = 16,991.55 × 7,007.37
  4. Step 4: Simplify right side
    12,313.14x = 119,066,077.72
  5. Step 5: Solve for x
    x = 119,066,077.72/12,313.14
  6. Step 6: Final answer
    x = 9,669.84

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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.