Home / 13,118.14-19,670.73-5,719.40

Finding the Fourth Proportional to 13,118.14, 19,670.73 and 5,719.40

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Solution

The fourth proportional to 13,118.14, 19,670.73 and 5,719.40 is: 8,576.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.14 : 19,670.73 = 5,719.40 : x
  2. Step 2: Convert to fraction form
    13,118.14/19,670.73 = 5,719.40/x
  3. Step 3: Cross multiply
    13,118.14x = 19,670.73 × 5,719.40
  4. Step 4: Simplify right side
    13,118.14x = 112,504,773.16
  5. Step 5: Solve for x
    x = 112,504,773.16/13,118.14
  6. Step 6: Final answer
    x = 8,576.27

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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.