Home / 7,779.07-11,663.09-3,614.65

Finding the Fourth Proportional to 7,779.07, 11,663.09 and 3,614.65

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Solution

The fourth proportional to 7,779.07, 11,663.09 and 3,614.65 is: 5,419.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.07 : 11,663.09 = 3,614.65 : x
  2. Step 2: Convert to fraction form
    7,779.07/11,663.09 = 3,614.65/x
  3. Step 3: Cross multiply
    7,779.07x = 11,663.09 × 3,614.65
  4. Step 4: Simplify right side
    7,779.07x = 42,157,929.95
  5. Step 5: Solve for x
    x = 42,157,929.95/7,779.07
  6. Step 6: Final answer
    x = 5,419.41

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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.