Home / 12,890.33-19,338.26-4,005.48

Finding the Fourth Proportional to 12,890.33, 19,338.26 and 4,005.48

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Solution

The fourth proportional to 12,890.33, 19,338.26 and 4,005.48 is: 6,009.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890.33 : 19,338.26 = 4,005.48 : x
  2. Step 2: Convert to fraction form
    12,890.33/19,338.26 = 4,005.48/x
  3. Step 3: Cross multiply
    12,890.33x = 19,338.26 × 4,005.48
  4. Step 4: Simplify right side
    12,890.33x = 77,458,993.64
  5. Step 5: Solve for x
    x = 77,458,993.64/12,890.33
  6. Step 6: Final answer
    x = 6,009.08

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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.