Home / 7,171.38-9,896.40-4,376.88

Finding the Fourth Proportional to 7,171.38, 9,896.40 and 4,376.88

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Solution

The fourth proportional to 7,171.38, 9,896.40 and 4,376.88 is: 6,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.38 : 9,896.40 = 4,376.88 : x
  2. Step 2: Convert to fraction form
    7,171.38/9,896.40 = 4,376.88/x
  3. Step 3: Cross multiply
    7,171.38x = 9,896.40 × 4,376.88
  4. Step 4: Simplify right side
    7,171.38x = 43,315,355.23
  5. Step 5: Solve for x
    x = 43,315,355.23/7,171.38
  6. Step 6: Final answer
    x = 6,040.03

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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.