Home / 11,356.27-15,673.53-6,639.64

Finding the Fourth Proportional to 11,356.27, 15,673.53 and 6,639.64

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Solution

The fourth proportional to 11,356.27, 15,673.53 and 6,639.64 is: 9,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.27 : 15,673.53 = 6,639.64 : x
  2. Step 2: Convert to fraction form
    11,356.27/15,673.53 = 6,639.64/x
  3. Step 3: Cross multiply
    11,356.27x = 15,673.53 × 6,639.64
  4. Step 4: Simplify right side
    11,356.27x = 104,066,596.73
  5. Step 5: Solve for x
    x = 104,066,596.73/11,356.27
  6. Step 6: Final answer
    x = 9,163.80

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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.