Home / 7,779.11-11,665.62-3,393.59

Finding the Fourth Proportional to 7,779.11, 11,665.62 and 3,393.59

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Solution

The fourth proportional to 7,779.11, 11,665.62 and 3,393.59 is: 5,089.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.11 : 11,665.62 = 3,393.59 : x
  2. Step 2: Convert to fraction form
    7,779.11/11,665.62 = 3,393.59/x
  3. Step 3: Cross multiply
    7,779.11x = 11,665.62 × 3,393.59
  4. Step 4: Simplify right side
    7,779.11x = 39,588,273.05
  5. Step 5: Solve for x
    x = 39,588,273.05/7,779.11
  6. Step 6: Final answer
    x = 5,089.05

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1.5x scale

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.