Home / 11,085.16-16,640.70-7,205.80

Finding the Fourth Proportional to 11,085.16, 16,640.70 and 7,205.80

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Solution

The fourth proportional to 11,085.16, 16,640.70 and 7,205.80 is: 10,817.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,085.16 : 16,640.70 = 7,205.80 : x
  2. Step 2: Convert to fraction form
    11,085.16/16,640.70 = 7,205.80/x
  3. Step 3: Cross multiply
    11,085.16x = 16,640.70 × 7,205.80
  4. Step 4: Simplify right side
    11,085.16x = 119,909,556.06
  5. Step 5: Solve for x
    x = 119,909,556.06/11,085.16
  6. Step 6: Final answer
    x = 10,817.12

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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.