Home / 11,782.20-16,258.50-6,745.21

Finding the Fourth Proportional to 11,782.20, 16,258.50 and 6,745.21

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Solution

The fourth proportional to 11,782.20, 16,258.50 and 6,745.21 is: 9,307.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,782.20 : 16,258.50 = 6,745.21 : x
  2. Step 2: Convert to fraction form
    11,782.20/16,258.50 = 6,745.21/x
  3. Step 3: Cross multiply
    11,782.20x = 16,258.50 × 6,745.21
  4. Step 4: Simplify right side
    11,782.20x = 109,666,996.79
  5. Step 5: Solve for x
    x = 109,666,996.79/11,782.20
  6. Step 6: Final answer
    x = 9,307.86

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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.