Home / 11,930.42-16,471.55-7,683.12

Finding the Fourth Proportional to 11,930.42, 16,471.55 and 7,683.12

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Solution

The fourth proportional to 11,930.42, 16,471.55 and 7,683.12 is: 10,607.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,930.42 : 16,471.55 = 7,683.12 : x
  2. Step 2: Convert to fraction form
    11,930.42/16,471.55 = 7,683.12/x
  3. Step 3: Cross multiply
    11,930.42x = 16,471.55 × 7,683.12
  4. Step 4: Simplify right side
    11,930.42x = 126,552,914.44
  5. Step 5: Solve for x
    x = 126,552,914.44/11,930.42
  6. Step 6: Final answer
    x = 10,607.58

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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.