Home / 11,415.06-15,754.26-6,699.78

Finding the Fourth Proportional to 11,415.06, 15,754.26 and 6,699.78

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Solution

The fourth proportional to 11,415.06, 15,754.26 and 6,699.78 is: 9,246.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,415.06 : 15,754.26 = 6,699.78 : x
  2. Step 2: Convert to fraction form
    11,415.06/15,754.26 = 6,699.78/x
  3. Step 3: Cross multiply
    11,415.06x = 15,754.26 × 6,699.78
  4. Step 4: Simplify right side
    11,415.06x = 105,550,076.06
  5. Step 5: Solve for x
    x = 105,550,076.06/11,415.06
  6. Step 6: Final answer
    x = 9,246.56

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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.