Home / 9,297.21-12,828.99-5,520.45

Finding the Fourth Proportional to 9,297.21, 12,828.99 and 5,520.45

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Solution

The fourth proportional to 9,297.21, 12,828.99 and 5,520.45 is: 7,617.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,297.21 : 12,828.99 = 5,520.45 : x
  2. Step 2: Convert to fraction form
    9,297.21/12,828.99 = 5,520.45/x
  3. Step 3: Cross multiply
    9,297.21x = 12,828.99 × 5,520.45
  4. Step 4: Simplify right side
    9,297.21x = 70,821,797.85
  5. Step 5: Solve for x
    x = 70,821,797.85/9,297.21
  6. Step 6: Final answer
    x = 7,617.53

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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.