Home / 7,974.78-11,004.30-4,787.46

Finding the Fourth Proportional to 7,974.78, 11,004.30 and 4,787.46

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Solution

The fourth proportional to 7,974.78, 11,004.30 and 4,787.46 is: 6,606.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.78 : 11,004.30 = 4,787.46 : x
  2. Step 2: Convert to fraction form
    7,974.78/11,004.30 = 4,787.46/x
  3. Step 3: Cross multiply
    7,974.78x = 11,004.30 × 4,787.46
  4. Step 4: Simplify right side
    7,974.78x = 52,682,646.08
  5. Step 5: Solve for x
    x = 52,682,646.08/7,974.78
  6. Step 6: Final answer
    x = 6,606.16

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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.