Home / 12,699.24-19,035.62-5,307.96

Finding the Fourth Proportional to 12,699.24, 19,035.62 and 5,307.96

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Solution

The fourth proportional to 12,699.24, 19,035.62 and 5,307.96 is: 7,956.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.24 : 19,035.62 = 5,307.96 : x
  2. Step 2: Convert to fraction form
    12,699.24/19,035.62 = 5,307.96/x
  3. Step 3: Cross multiply
    12,699.24x = 19,035.62 × 5,307.96
  4. Step 4: Simplify right side
    12,699.24x = 101,040,309.54
  5. Step 5: Solve for x
    x = 101,040,309.54/12,699.24
  6. Step 6: Final answer
    x = 7,956.41

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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.