Home / 11,838.88-16,342.34-7,122.26

Finding the Fourth Proportional to 11,838.88, 16,342.34 and 7,122.26

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Solution

The fourth proportional to 11,838.88, 16,342.34 and 7,122.26 is: 9,831.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,838.88 : 16,342.34 = 7,122.26 : x
  2. Step 2: Convert to fraction form
    11,838.88/16,342.34 = 7,122.26/x
  3. Step 3: Cross multiply
    11,838.88x = 16,342.34 × 7,122.26
  4. Step 4: Simplify right side
    11,838.88x = 116,394,394.49
  5. Step 5: Solve for x
    x = 116,394,394.49/11,838.88
  6. Step 6: Final answer
    x = 9,831.54

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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.