Home / 7,415.55-11,118.47-3,028.59

Finding the Fourth Proportional to 7,415.55, 11,118.47 and 3,028.59

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Solution

The fourth proportional to 7,415.55, 11,118.47 and 3,028.59 is: 4,540.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.55 : 11,118.47 = 3,028.59 : x
  2. Step 2: Convert to fraction form
    7,415.55/11,118.47 = 3,028.59/x
  3. Step 3: Cross multiply
    7,415.55x = 11,118.47 × 3,028.59
  4. Step 4: Simplify right side
    7,415.55x = 33,673,271.91
  5. Step 5: Solve for x
    x = 33,673,271.91/7,415.55
  6. Step 6: Final answer
    x = 4,540.90

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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.