Home / 11,897.15-16,419.53-6,861.37

Finding the Fourth Proportional to 11,897.15, 16,419.53 and 6,861.37

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Solution

The fourth proportional to 11,897.15, 16,419.53 and 6,861.37 is: 9,469.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.15 : 16,419.53 = 6,861.37 : x
  2. Step 2: Convert to fraction form
    11,897.15/16,419.53 = 6,861.37/x
  3. Step 3: Cross multiply
    11,897.15x = 16,419.53 × 6,861.37
  4. Step 4: Simplify right side
    11,897.15x = 112,660,395.20
  5. Step 5: Solve for x
    x = 112,660,395.20/11,897.15
  6. Step 6: Final answer
    x = 9,469.53

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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.