Home / 11,828.34-17,742.51-4,812.18

Finding the Fourth Proportional to 11,828.34, 17,742.51 and 4,812.18

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Solution

The fourth proportional to 11,828.34, 17,742.51 and 4,812.18 is: 7,218.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,828.34 : 17,742.51 = 4,812.18 : x
  2. Step 2: Convert to fraction form
    11,828.34/17,742.51 = 4,812.18/x
  3. Step 3: Cross multiply
    11,828.34x = 17,742.51 × 4,812.18
  4. Step 4: Simplify right side
    11,828.34x = 85,380,151.77
  5. Step 5: Solve for x
    x = 85,380,151.77/11,828.34
  6. Step 6: Final answer
    x = 7,218.27

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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.