Home / 12,280.44-18,424.07-4,890.09

Finding the Fourth Proportional to 12,280.44, 18,424.07 and 4,890.09

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Solution

The fourth proportional to 12,280.44, 18,424.07 and 4,890.09 is: 7,336.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.44 : 18,424.07 = 4,890.09 : x
  2. Step 2: Convert to fraction form
    12,280.44/18,424.07 = 4,890.09/x
  3. Step 3: Cross multiply
    12,280.44x = 18,424.07 × 4,890.09
  4. Step 4: Simplify right side
    12,280.44x = 90,095,336.02
  5. Step 5: Solve for x
    x = 90,095,336.02/12,280.44
  6. Step 6: Final answer
    x = 7,336.49

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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.