Home / 11,490.73-15,855.30-6,774.37

Finding the Fourth Proportional to 11,490.73, 15,855.30 and 6,774.37

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Solution

The fourth proportional to 11,490.73, 15,855.30 and 6,774.37 is: 9,347.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,490.73 : 15,855.30 = 6,774.37 : x
  2. Step 2: Convert to fraction form
    11,490.73/15,855.30 = 6,774.37/x
  3. Step 3: Cross multiply
    11,490.73x = 15,855.30 × 6,774.37
  4. Step 4: Simplify right side
    11,490.73x = 107,409,668.66
  5. Step 5: Solve for x
    x = 107,409,668.66/11,490.73
  6. Step 6: Final answer
    x = 9,347.51

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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.