Home / 11,395.80-15,726.21-6,680.07

Finding the Fourth Proportional to 11,395.80, 15,726.21 and 6,680.07

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Solution

The fourth proportional to 11,395.80, 15,726.21 and 6,680.07 is: 9,218.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,395.80 : 15,726.21 = 6,680.07 : x
  2. Step 2: Convert to fraction form
    11,395.80/15,726.21 = 6,680.07/x
  3. Step 3: Cross multiply
    11,395.80x = 15,726.21 × 6,680.07
  4. Step 4: Simplify right side
    11,395.80x = 105,052,183.63
  5. Step 5: Solve for x
    x = 105,052,183.63/11,395.80
  6. Step 6: Final answer
    x = 9,218.50

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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.