Home / 11,897.70-16,418.62-6,861.54

Finding the Fourth Proportional to 11,897.70, 16,418.62 and 6,861.54

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Solution

The fourth proportional to 11,897.70, 16,418.62 and 6,861.54 is: 9,468.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.70 : 16,418.62 = 6,861.54 : x
  2. Step 2: Convert to fraction form
    11,897.70/16,418.62 = 6,861.54/x
  3. Step 3: Cross multiply
    11,897.70x = 16,418.62 × 6,861.54
  4. Step 4: Simplify right side
    11,897.70x = 112,657,017.87
  5. Step 5: Solve for x
    x = 112,657,017.87/11,897.70
  6. Step 6: Final answer
    x = 9,468.81

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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.