Home / 7,955.06-11,929.59-6,391.22

Finding the Fourth Proportional to 7,955.06, 11,929.59 and 6,391.22

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Solution

The fourth proportional to 7,955.06, 11,929.59 and 6,391.22 is: 9,584.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.06 : 11,929.59 = 6,391.22 : x
  2. Step 2: Convert to fraction form
    7,955.06/11,929.59 = 6,391.22/x
  3. Step 3: Cross multiply
    7,955.06x = 11,929.59 × 6,391.22
  4. Step 4: Simplify right side
    7,955.06x = 76,244,680.00
  5. Step 5: Solve for x
    x = 76,244,680.00/7,955.06
  6. Step 6: Final answer
    x = 9,584.42

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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.