Home / 13,120.01-18,105.37-7,151.73

Finding the Fourth Proportional to 13,120.01, 18,105.37 and 7,151.73

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Solution

The fourth proportional to 13,120.01, 18,105.37 and 7,151.73 is: 9,869.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.01 : 18,105.37 = 7,151.73 : x
  2. Step 2: Convert to fraction form
    13,120.01/18,105.37 = 7,151.73/x
  3. Step 3: Cross multiply
    13,120.01x = 18,105.37 × 7,151.73
  4. Step 4: Simplify right side
    13,120.01x = 129,484,717.79
  5. Step 5: Solve for x
    x = 129,484,717.79/13,120.01
  6. Step 6: Final answer
    x = 9,869.25

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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.