Home / 13,174.18-18,174.27-7,581.94

Finding the Fourth Proportional to 13,174.18, 18,174.27 and 7,581.94

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Solution

The fourth proportional to 13,174.18, 18,174.27 and 7,581.94 is: 10,459.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.18 : 18,174.27 = 7,581.94 : x
  2. Step 2: Convert to fraction form
    13,174.18/18,174.27 = 7,581.94/x
  3. Step 3: Cross multiply
    13,174.18x = 18,174.27 × 7,581.94
  4. Step 4: Simplify right side
    13,174.18x = 137,796,207.68
  5. Step 5: Solve for x
    x = 137,796,207.68/13,174.18
  6. Step 6: Final answer
    x = 10,459.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.