Home / 15,283.33-21,091.86-8,571.11

Finding the Fourth Proportional to 15,283.33, 21,091.86 and 8,571.11

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Solution

The fourth proportional to 15,283.33, 21,091.86 and 8,571.11 is: 11,828.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,283.33 : 21,091.86 = 8,571.11 : x
  2. Step 2: Convert to fraction form
    15,283.33/21,091.86 = 8,571.11/x
  3. Step 3: Cross multiply
    15,283.33x = 21,091.86 × 8,571.11
  4. Step 4: Simplify right side
    15,283.33x = 180,780,546.71
  5. Step 5: Solve for x
    x = 180,780,546.71/15,283.33
  6. Step 6: Final answer
    x = 11,828.61

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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.