Home / 12,225.80-18,330.60-4,433.60

Finding the Fourth Proportional to 12,225.80, 18,330.60 and 4,433.60

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Solution

The fourth proportional to 12,225.80, 18,330.60 and 4,433.60 is: 6,647.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.80 : 18,330.60 = 4,433.60 : x
  2. Step 2: Convert to fraction form
    12,225.80/18,330.60 = 4,433.60/x
  3. Step 3: Cross multiply
    12,225.80x = 18,330.60 × 4,433.60
  4. Step 4: Simplify right side
    12,225.80x = 81,270,548.16
  5. Step 5: Solve for x
    x = 81,270,548.16/12,225.80
  6. Step 6: Final answer
    x = 6,647.46

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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.