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Finding the Fourth Proportional to 11,479.94, 15,843.02 and 7,645.00

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Solution

The fourth proportional to 11,479.94, 15,843.02 and 7,645.00 is: 10,550.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.94 : 15,843.02 = 7,645.00 : x
  2. Step 2: Convert to fraction form
    11,479.94/15,843.02 = 7,645.00/x
  3. Step 3: Cross multiply
    11,479.94x = 15,843.02 × 7,645.00
  4. Step 4: Simplify right side
    11,479.94x = 121,119,904.28
  5. Step 5: Solve for x
    x = 121,119,904.28/11,479.94
  6. Step 6: Final answer
    x = 10,550.57

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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.