Home / 15,287.67-21,096.06-8,571.96

Finding the Fourth Proportional to 15,287.67, 21,096.06 and 8,571.96

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Solution

The fourth proportional to 15,287.67, 21,096.06 and 8,571.96 is: 11,828.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287.67 : 21,096.06 = 8,571.96 : x
  2. Step 2: Convert to fraction form
    15,287.67/21,096.06 = 8,571.96/x
  3. Step 3: Cross multiply
    15,287.67x = 21,096.06 × 8,571.96
  4. Step 4: Simplify right side
    15,287.67x = 180,834,582.48
  5. Step 5: Solve for x
    x = 180,834,582.48/15,287.67
  6. Step 6: Final answer
    x = 11,828.79

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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.