Home / 6,923.40-9,554.90-3,938.60

Finding the Fourth Proportional to 6,923.40, 9,554.90 and 3,938.60

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Solution

The fourth proportional to 6,923.40, 9,554.90 and 3,938.60 is: 5,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,923.40 : 9,554.90 = 3,938.60 : x
  2. Step 2: Convert to fraction form
    6,923.40/9,554.90 = 3,938.60/x
  3. Step 3: Cross multiply
    6,923.40x = 9,554.90 × 3,938.60
  4. Step 4: Simplify right side
    6,923.40x = 37,632,861.67
  5. Step 5: Solve for x
    x = 37,632,861.67/6,923.40
  6. Step 6: Final answer
    x = 5,435.60

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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.