Home / 9,415.22-12,992.90-5,223.44

Finding the Fourth Proportional to 9,415.22, 12,992.90 and 5,223.44

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Solution

The fourth proportional to 9,415.22, 12,992.90 and 5,223.44 is: 7,208.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,415.22 : 12,992.90 = 5,223.44 : x
  2. Step 2: Convert to fraction form
    9,415.22/12,992.90 = 5,223.44/x
  3. Step 3: Cross multiply
    9,415.22x = 12,992.90 × 5,223.44
  4. Step 4: Simplify right side
    9,415.22x = 67,867,633.58
  5. Step 5: Solve for x
    x = 67,867,633.58/9,415.22
  6. Step 6: Final answer
    x = 7,208.29

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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.