Home / 11,923.52-16,455.36-6,619.36

Finding the Fourth Proportional to 11,923.52, 16,455.36 and 6,619.36

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Solution

The fourth proportional to 11,923.52, 16,455.36 and 6,619.36 is: 9,135.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,923.52 : 16,455.36 = 6,619.36 : x
  2. Step 2: Convert to fraction form
    11,923.52/16,455.36 = 6,619.36/x
  3. Step 3: Cross multiply
    11,923.52x = 16,455.36 × 6,619.36
  4. Step 4: Simplify right side
    11,923.52x = 108,923,951.77
  5. Step 5: Solve for x
    x = 108,923,951.77/11,923.52
  6. Step 6: Final answer
    x = 9,135.22

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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.