Home / 11,897.07-16,418.52-7,181.25

Finding the Fourth Proportional to 11,897.07, 16,418.52 and 7,181.25

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Solution

The fourth proportional to 11,897.07, 16,418.52 and 7,181.25 is: 9,910.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.07 : 16,418.52 = 7,181.25 : x
  2. Step 2: Convert to fraction form
    11,897.07/16,418.52 = 7,181.25/x
  3. Step 3: Cross multiply
    11,897.07x = 16,418.52 × 7,181.25
  4. Step 4: Simplify right side
    11,897.07x = 117,905,496.75
  5. Step 5: Solve for x
    x = 117,905,496.75/11,897.07
  6. Step 6: Final answer
    x = 9,910.47

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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.