Home / 9,103.44-12,558.83-5,220.78

Finding the Fourth Proportional to 9,103.44, 12,558.83 and 5,220.78

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Solution

The fourth proportional to 9,103.44, 12,558.83 and 5,220.78 is: 7,202.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,103.44 : 12,558.83 = 5,220.78 : x
  2. Step 2: Convert to fraction form
    9,103.44/12,558.83 = 5,220.78/x
  3. Step 3: Cross multiply
    9,103.44x = 12,558.83 × 5,220.78
  4. Step 4: Simplify right side
    9,103.44x = 65,566,888.49
  5. Step 5: Solve for x
    x = 65,566,888.49/9,103.44
  6. Step 6: Final answer
    x = 7,202.43

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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.