Home / 7,947.30-11,916.39-3,270.54

Finding the Fourth Proportional to 7,947.30, 11,916.39 and 3,270.54

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Solution

The fourth proportional to 7,947.30, 11,916.39 and 3,270.54 is: 4,903.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.30 : 11,916.39 = 3,270.54 : x
  2. Step 2: Convert to fraction form
    7,947.30/11,916.39 = 3,270.54/x
  3. Step 3: Cross multiply
    7,947.30x = 11,916.39 × 3,270.54
  4. Step 4: Simplify right side
    7,947.30x = 38,973,030.15
  5. Step 5: Solve for x
    x = 38,973,030.15/7,947.30
  6. Step 6: Final answer
    x = 4,903.93

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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.