Home / 9,955.35-13,738.01-5,478.85

Finding the Fourth Proportional to 9,955.35, 13,738.01 and 5,478.85

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Solution

The fourth proportional to 9,955.35, 13,738.01 and 5,478.85 is: 7,560.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,955.35 : 13,738.01 = 5,478.85 : x
  2. Step 2: Convert to fraction form
    9,955.35/13,738.01 = 5,478.85/x
  3. Step 3: Cross multiply
    9,955.35x = 13,738.01 × 5,478.85
  4. Step 4: Simplify right side
    9,955.35x = 75,268,485.87
  5. Step 5: Solve for x
    x = 75,268,485.87/9,955.35
  6. Step 6: Final answer
    x = 7,560.61

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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.