Home / 11,161.70-15,405.59-8,734.26

Finding the Fourth Proportional to 11,161.70, 15,405.59 and 8,734.26

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Solution

The fourth proportional to 11,161.70, 15,405.59 and 8,734.26 is: 12,055.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.70 : 15,405.59 = 8,734.26 : x
  2. Step 2: Convert to fraction form
    11,161.70/15,405.59 = 8,734.26/x
  3. Step 3: Cross multiply
    11,161.70x = 15,405.59 × 8,734.26
  4. Step 4: Simplify right side
    11,161.70x = 134,556,378.14
  5. Step 5: Solve for x
    x = 134,556,378.14/11,161.70
  6. Step 6: Final answer
    x = 12,055.19

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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.