Home / 7,779.62-11,665.59-3,395.18

Finding the Fourth Proportional to 7,779.62, 11,665.59 and 3,395.18

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Solution

The fourth proportional to 7,779.62, 11,665.59 and 3,395.18 is: 5,091.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.62 : 11,665.59 = 3,395.18 : x
  2. Step 2: Convert to fraction form
    7,779.62/11,665.59 = 3,395.18/x
  3. Step 3: Cross multiply
    7,779.62x = 11,665.59 × 3,395.18
  4. Step 4: Simplify right side
    7,779.62x = 39,606,777.86
  5. Step 5: Solve for x
    x = 39,606,777.86/7,779.62
  6. Step 6: Final answer
    x = 5,091.09

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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.