Home / 7,173.12-9,898.46-3,986.22

Finding the Fourth Proportional to 7,173.12, 9,898.46 and 3,986.22

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Solution

The fourth proportional to 7,173.12, 9,898.46 and 3,986.22 is: 5,500.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,173.12 : 9,898.46 = 3,986.22 : x
  2. Step 2: Convert to fraction form
    7,173.12/9,898.46 = 3,986.22/x
  3. Step 3: Cross multiply
    7,173.12x = 9,898.46 × 3,986.22
  4. Step 4: Simplify right side
    7,173.12x = 39,457,419.29
  5. Step 5: Solve for x
    x = 39,457,419.29/7,173.12
  6. Step 6: Final answer
    x = 5,500.73

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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.