Home / 11,895.26-16,415.60-7,178.63

Finding the Fourth Proportional to 11,895.26, 16,415.60 and 7,178.63

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Solution

The fourth proportional to 11,895.26, 16,415.60 and 7,178.63 is: 9,906.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,895.26 : 16,415.60 = 7,178.63 : x
  2. Step 2: Convert to fraction form
    11,895.26/16,415.60 = 7,178.63/x
  3. Step 3: Cross multiply
    11,895.26x = 16,415.60 × 7,178.63
  4. Step 4: Simplify right side
    11,895.26x = 117,841,400.66
  5. Step 5: Solve for x
    x = 117,841,400.66/11,895.26
  6. Step 6: Final answer
    x = 9,906.59

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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.