Home / 12,287.33-18,435.08-4,889.80

Finding the Fourth Proportional to 12,287.33, 18,435.08 and 4,889.80

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Solution

The fourth proportional to 12,287.33, 18,435.08 and 4,889.80 is: 7,336.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,287.33 : 18,435.08 = 4,889.80 : x
  2. Step 2: Convert to fraction form
    12,287.33/18,435.08 = 4,889.80/x
  3. Step 3: Cross multiply
    12,287.33x = 18,435.08 × 4,889.80
  4. Step 4: Simplify right side
    12,287.33x = 90,143,854.18
  5. Step 5: Solve for x
    x = 90,143,854.18/12,287.33
  6. Step 6: Final answer
    x = 7,336.33

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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.