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Finding the Fourth Proportional to 13,094.12, 18,073.74 and 7,991.48

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Solution

The fourth proportional to 13,094.12, 18,073.74 and 7,991.48 is: 11,030.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,094.12 : 18,073.74 = 7,991.48 : x
  2. Step 2: Convert to fraction form
    13,094.12/18,073.74 = 7,991.48/x
  3. Step 3: Cross multiply
    13,094.12x = 18,073.74 × 7,991.48
  4. Step 4: Simplify right side
    13,094.12x = 144,435,931.74
  5. Step 5: Solve for x
    x = 144,435,931.74/13,094.12
  6. Step 6: Final answer
    x = 11,030.59

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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.