Home / 12,222.40-18,320.60-9,293.44

Finding the Fourth Proportional to 12,222.40, 18,320.60 and 9,293.44

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Solution

The fourth proportional to 12,222.40, 18,320.60 and 9,293.44 is: 13,930.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.40 : 18,320.60 = 9,293.44 : x
  2. Step 2: Convert to fraction form
    12,222.40/18,320.60 = 9,293.44/x
  3. Step 3: Cross multiply
    12,222.40x = 18,320.60 × 9,293.44
  4. Step 4: Simplify right side
    12,222.40x = 170,261,396.86
  5. Step 5: Solve for x
    x = 170,261,396.86/12,222.40
  6. Step 6: Final answer
    x = 13,930.28

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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.