Home / 8,665.75-11,959.29-4,887.54

Finding the Fourth Proportional to 8,665.75, 11,959.29 and 4,887.54

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Solution

The fourth proportional to 8,665.75, 11,959.29 and 4,887.54 is: 6,745.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.75 : 11,959.29 = 4,887.54 : x
  2. Step 2: Convert to fraction form
    8,665.75/11,959.29 = 4,887.54/x
  3. Step 3: Cross multiply
    8,665.75x = 11,959.29 × 4,887.54
  4. Step 4: Simplify right side
    8,665.75x = 58,451,478.35
  5. Step 5: Solve for x
    x = 58,451,478.35/8,665.75
  6. Step 6: Final answer
    x = 6,745.11

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1.5x scale

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.