Home / 11,295.45-15,579.95-7,945.29

Finding the Fourth Proportional to 11,295.45, 15,579.95 and 7,945.29

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Solution

The fourth proportional to 11,295.45, 15,579.95 and 7,945.29 is: 10,959.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,295.45 : 15,579.95 = 7,945.29 : x
  2. Step 2: Convert to fraction form
    11,295.45/15,579.95 = 7,945.29/x
  3. Step 3: Cross multiply
    11,295.45x = 15,579.95 × 7,945.29
  4. Step 4: Simplify right side
    11,295.45x = 123,787,181.21
  5. Step 5: Solve for x
    x = 123,787,181.21/11,295.45
  6. Step 6: Final answer
    x = 10,959.03

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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.