Home / 13,185.16-19,771.34-4,869.09

Finding the Fourth Proportional to 13,185.16, 19,771.34 and 4,869.09

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Solution

The fourth proportional to 13,185.16, 19,771.34 and 4,869.09 is: 7,301.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.16 : 19,771.34 = 4,869.09 : x
  2. Step 2: Convert to fraction form
    13,185.16/19,771.34 = 4,869.09/x
  3. Step 3: Cross multiply
    13,185.16x = 19,771.34 × 4,869.09
  4. Step 4: Simplify right side
    13,185.16x = 96,268,433.88
  5. Step 5: Solve for x
    x = 96,268,433.88/13,185.16
  6. Step 6: Final answer
    x = 7,301.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.