Home / 11,702.21-16,150.14-6,397.80

Finding the Fourth Proportional to 11,702.21, 16,150.14 and 6,397.80

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Solution

The fourth proportional to 11,702.21, 16,150.14 and 6,397.80 is: 8,829.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,702.21 : 16,150.14 = 6,397.80 : x
  2. Step 2: Convert to fraction form
    11,702.21/16,150.14 = 6,397.80/x
  3. Step 3: Cross multiply
    11,702.21x = 16,150.14 × 6,397.80
  4. Step 4: Simplify right side
    11,702.21x = 103,325,365.69
  5. Step 5: Solve for x
    x = 103,325,365.69/11,702.21
  6. Step 6: Final answer
    x = 8,829.56

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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.