Home / 11,923.56-16,455.52-6,619.40

Finding the Fourth Proportional to 11,923.56, 16,455.52 and 6,619.40

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Solution

The fourth proportional to 11,923.56, 16,455.52 and 6,619.40 is: 9,135.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,923.56 : 16,455.52 = 6,619.40 : x
  2. Step 2: Convert to fraction form
    11,923.56/16,455.52 = 6,619.40/x
  3. Step 3: Cross multiply
    11,923.56x = 16,455.52 × 6,619.40
  4. Step 4: Simplify right side
    11,923.56x = 108,925,669.09
  5. Step 5: Solve for x
    x = 108,925,669.09/11,923.56
  6. Step 6: Final answer
    x = 9,135.33

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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.