Home / 9,485.38-13,087.20-6,128.34

Finding the Fourth Proportional to 9,485.38, 13,087.20 and 6,128.34

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Solution

The fourth proportional to 9,485.38, 13,087.20 and 6,128.34 is: 8,455.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,485.38 : 13,087.20 = 6,128.34 : x
  2. Step 2: Convert to fraction form
    9,485.38/13,087.20 = 6,128.34/x
  3. Step 3: Cross multiply
    9,485.38x = 13,087.20 × 6,128.34
  4. Step 4: Simplify right side
    9,485.38x = 80,202,811.25
  5. Step 5: Solve for x
    x = 80,202,811.25/9,485.38
  6. Step 6: Final answer
    x = 8,455.41

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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.