Home / 12,890.70-19,324.80-4,998.60

Finding the Fourth Proportional to 12,890.70, 19,324.80 and 4,998.60

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Solution

The fourth proportional to 12,890.70, 19,324.80 and 4,998.60 is: 7,493.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890.70 : 19,324.80 = 4,998.60 : x
  2. Step 2: Convert to fraction form
    12,890.70/19,324.80 = 4,998.60/x
  3. Step 3: Cross multiply
    12,890.70x = 19,324.80 × 4,998.60
  4. Step 4: Simplify right side
    12,890.70x = 96,596,945.28
  5. Step 5: Solve for x
    x = 96,596,945.28/12,890.70
  6. Step 6: Final answer
    x = 7,493.54

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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.