Home / 6,615.21-9,907.61-3,687.03

Finding the Fourth Proportional to 6,615.21, 9,907.61 and 3,687.03

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Solution

The fourth proportional to 6,615.21, 9,907.61 and 3,687.03 is: 5,522.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.21 : 9,907.61 = 3,687.03 : x
  2. Step 2: Convert to fraction form
    6,615.21/9,907.61 = 3,687.03/x
  3. Step 3: Cross multiply
    6,615.21x = 9,907.61 × 3,687.03
  4. Step 4: Simplify right side
    6,615.21x = 36,529,636.86
  5. Step 5: Solve for x
    x = 36,529,636.86/6,615.21
  6. Step 6: Final answer
    x = 5,522.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.