Home / 11,556.26-15,947.86-6,779.04

Finding the Fourth Proportional to 11,556.26, 15,947.86 and 6,779.04

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Solution

The fourth proportional to 11,556.26, 15,947.86 and 6,779.04 is: 9,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,556.26 : 15,947.86 = 6,779.04 : x
  2. Step 2: Convert to fraction form
    11,556.26/15,947.86 = 6,779.04/x
  3. Step 3: Cross multiply
    11,556.26x = 15,947.86 × 6,779.04
  4. Step 4: Simplify right side
    11,556.26x = 108,111,180.85
  5. Step 5: Solve for x
    x = 108,111,180.85/11,556.26
  6. Step 6: Final answer
    x = 9,355.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.