Home / 12,782.48-19,165.44-4,992.08

Finding the Fourth Proportional to 12,782.48, 19,165.44 and 4,992.08

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Solution

The fourth proportional to 12,782.48, 19,165.44 and 4,992.08 is: 7,484.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,782.48 : 19,165.44 = 4,992.08 : x
  2. Step 2: Convert to fraction form
    12,782.48/19,165.44 = 4,992.08/x
  3. Step 3: Cross multiply
    12,782.48x = 19,165.44 × 4,992.08
  4. Step 4: Simplify right side
    12,782.48x = 95,675,409.72
  5. Step 5: Solve for x
    x = 95,675,409.72/12,782.48
  6. Step 6: Final answer
    x = 7,484.89

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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.