Home / 11,257.89-15,535.46-6,479.37

Finding the Fourth Proportional to 11,257.89, 15,535.46 and 6,479.37

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Solution

The fourth proportional to 11,257.89, 15,535.46 and 6,479.37 is: 8,941.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,257.89 : 15,535.46 = 6,479.37 : x
  2. Step 2: Convert to fraction form
    11,257.89/15,535.46 = 6,479.37/x
  3. Step 3: Cross multiply
    11,257.89x = 15,535.46 × 6,479.37
  4. Step 4: Simplify right side
    11,257.89x = 100,659,961.06
  5. Step 5: Solve for x
    x = 100,659,961.06/11,257.89
  6. Step 6: Final answer
    x = 8,941.28

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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.