Home / 11,395.73-15,727.60-6,680.45

Finding the Fourth Proportional to 11,395.73, 15,727.60 and 6,680.45

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Solution

The fourth proportional to 11,395.73, 15,727.60 and 6,680.45 is: 9,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,395.73 : 15,727.60 = 6,680.45 : x
  2. Step 2: Convert to fraction form
    11,395.73/15,727.60 = 6,680.45/x
  3. Step 3: Cross multiply
    11,395.73x = 15,727.60 × 6,680.45
  4. Step 4: Simplify right side
    11,395.73x = 105,067,493.09
  5. Step 5: Solve for x
    x = 105,067,493.09/11,395.73
  6. Step 6: Final answer
    x = 9,219.90

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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.