Home / 11,351.81-15,665.54-6,383.81

Finding the Fourth Proportional to 11,351.81, 15,665.54 and 6,383.81

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Solution

The fourth proportional to 11,351.81, 15,665.54 and 6,383.81 is: 8,809.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.81 : 15,665.54 = 6,383.81 : x
  2. Step 2: Convert to fraction form
    11,351.81/15,665.54 = 6,383.81/x
  3. Step 3: Cross multiply
    11,351.81x = 15,665.54 × 6,383.81
  4. Step 4: Simplify right side
    11,351.81x = 100,005,838.15
  5. Step 5: Solve for x
    x = 100,005,838.15/11,351.81
  6. Step 6: Final answer
    x = 8,809.68

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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.