Home / 11,085.75-15,299.75-6,307.56

Finding the Fourth Proportional to 11,085.75, 15,299.75 and 6,307.56

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Solution

The fourth proportional to 11,085.75, 15,299.75 and 6,307.56 is: 8,705.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,085.75 : 15,299.75 = 6,307.56 : x
  2. Step 2: Convert to fraction form
    11,085.75/15,299.75 = 6,307.56/x
  3. Step 3: Cross multiply
    11,085.75x = 15,299.75 × 6,307.56
  4. Step 4: Simplify right side
    11,085.75x = 96,504,091.11
  5. Step 5: Solve for x
    x = 96,504,091.11/11,085.75
  6. Step 6: Final answer
    x = 8,705.24

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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.