Home / 7,669.78-11,505.15-2,047.34

Finding the Fourth Proportional to 7,669.78, 11,505.15 and 2,047.34

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Solution

The fourth proportional to 7,669.78, 11,505.15 and 2,047.34 is: 3,071.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,669.78 : 11,505.15 = 2,047.34 : x
  2. Step 2: Convert to fraction form
    7,669.78/11,505.15 = 2,047.34/x
  3. Step 3: Cross multiply
    7,669.78x = 11,505.15 × 2,047.34
  4. Step 4: Simplify right side
    7,669.78x = 23,554,982.56
  5. Step 5: Solve for x
    x = 23,554,982.56/7,669.78
  6. Step 6: Final answer
    x = 3,071.14

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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.