Home / 11,539.50-15,917.13-6,820.44

Finding the Fourth Proportional to 11,539.50, 15,917.13 and 6,820.44

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Solution

The fourth proportional to 11,539.50, 15,917.13 and 6,820.44 is: 9,407.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,539.50 : 15,917.13 = 6,820.44 : x
  2. Step 2: Convert to fraction form
    11,539.50/15,917.13 = 6,820.44/x
  3. Step 3: Cross multiply
    11,539.50x = 15,917.13 × 6,820.44
  4. Step 4: Simplify right side
    11,539.50x = 108,561,830.14
  5. Step 5: Solve for x
    x = 108,561,830.14/11,539.50
  6. Step 6: Final answer
    x = 9,407.85

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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.