Home / 12,219.80-18,303.76-8,273.48

Finding the Fourth Proportional to 12,219.80, 18,303.76 and 8,273.48

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Solution

The fourth proportional to 12,219.80, 18,303.76 and 8,273.48 is: 12,392.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.80 : 18,303.76 = 8,273.48 : x
  2. Step 2: Convert to fraction form
    12,219.80/18,303.76 = 8,273.48/x
  3. Step 3: Cross multiply
    12,219.80x = 18,303.76 × 8,273.48
  4. Step 4: Simplify right side
    12,219.80x = 151,435,792.28
  5. Step 5: Solve for x
    x = 151,435,792.28/12,219.80
  6. Step 6: Final answer
    x = 12,392.66

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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.