Home / 11,859.05-16,367.75-7,818.78

Finding the Fourth Proportional to 11,859.05, 16,367.75 and 7,818.78

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Solution

The fourth proportional to 11,859.05, 16,367.75 and 7,818.78 is: 10,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,859.05 : 16,367.75 = 7,818.78 : x
  2. Step 2: Convert to fraction form
    11,859.05/16,367.75 = 7,818.78/x
  3. Step 3: Cross multiply
    11,859.05x = 16,367.75 × 7,818.78
  4. Step 4: Simplify right side
    11,859.05x = 127,975,836.35
  5. Step 5: Solve for x
    x = 127,975,836.35/11,859.05
  6. Step 6: Final answer
    x = 10,791.41

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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.