Home / 7,189.45-9,912.89-6,193.03

Finding the Fourth Proportional to 7,189.45, 9,912.89 and 6,193.03

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Solution

The fourth proportional to 7,189.45, 9,912.89 and 6,193.03 is: 8,539.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189.45 : 9,912.89 = 6,193.03 : x
  2. Step 2: Convert to fraction form
    7,189.45/9,912.89 = 6,193.03/x
  3. Step 3: Cross multiply
    7,189.45x = 9,912.89 × 6,193.03
  4. Step 4: Simplify right side
    7,189.45x = 61,390,794.19
  5. Step 5: Solve for x
    x = 61,390,794.19/7,189.45
  6. Step 6: Final answer
    x = 8,539.01

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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.