Home / 11,121.12-15,347.12-6,085.33

Finding the Fourth Proportional to 11,121.12, 15,347.12 and 6,085.33

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Solution

The fourth proportional to 11,121.12, 15,347.12 and 6,085.33 is: 8,397.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.12 : 15,347.12 = 6,085.33 : x
  2. Step 2: Convert to fraction form
    11,121.12/15,347.12 = 6,085.33/x
  3. Step 3: Cross multiply
    11,121.12x = 15,347.12 × 6,085.33
  4. Step 4: Simplify right side
    11,121.12x = 93,392,378.88
  5. Step 5: Solve for x
    x = 93,392,378.88/11,121.12
  6. Step 6: Final answer
    x = 8,397.75

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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.