Home / 12,280.54-16,945.96-6,974.33

Finding the Fourth Proportional to 12,280.54, 16,945.96 and 6,974.33

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Solution

The fourth proportional to 12,280.54, 16,945.96 and 6,974.33 is: 9,623.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.54 : 16,945.96 = 6,974.33 : x
  2. Step 2: Convert to fraction form
    12,280.54/16,945.96 = 6,974.33/x
  3. Step 3: Cross multiply
    12,280.54x = 16,945.96 × 6,974.33
  4. Step 4: Simplify right side
    12,280.54x = 118,186,717.21
  5. Step 5: Solve for x
    x = 118,186,717.21/12,280.54
  6. Step 6: Final answer
    x = 9,623.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.