Home / 12,283.09-18,427.26-4,385.99

Finding the Fourth Proportional to 12,283.09, 18,427.26 and 4,385.99

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Solution

The fourth proportional to 12,283.09, 18,427.26 and 4,385.99 is: 6,579.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,283.09 : 18,427.26 = 4,385.99 : x
  2. Step 2: Convert to fraction form
    12,283.09/18,427.26 = 4,385.99/x
  3. Step 3: Cross multiply
    12,283.09x = 18,427.26 × 4,385.99
  4. Step 4: Simplify right side
    12,283.09x = 80,821,778.09
  5. Step 5: Solve for x
    x = 80,821,778.09/12,283.09
  6. Step 6: Final answer
    x = 6,579.92

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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.