Home / 13,647.23-18,833.24-7,679

Finding the Fourth Proportional to 13,647.23, 18,833.24 and 7,679

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Solution

The fourth proportional to 13,647.23, 18,833.24 and 7,679 is: 10,597.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.23 : 18,833.24 = 7,679 : x
  2. Step 2: Convert to fraction form
    13,647.23/18,833.24 = 7,679/x
  3. Step 3: Cross multiply
    13,647.23x = 18,833.24 × 7,679
  4. Step 4: Simplify right side
    13,647.23x = 144,620,449.96
  5. Step 5: Solve for x
    x = 144,620,449.96/13,647.23
  6. Step 6: Final answer
    x = 10,597.06

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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.