Home / 11,015.40-16,500.70-6,842.60

Finding the Fourth Proportional to 11,015.40, 16,500.70 and 6,842.60

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Solution

The fourth proportional to 11,015.40, 16,500.70 and 6,842.60 is: 10,249.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.40 : 16,500.70 = 6,842.60 : x
  2. Step 2: Convert to fraction form
    11,015.40/16,500.70 = 6,842.60/x
  3. Step 3: Cross multiply
    11,015.40x = 16,500.70 × 6,842.60
  4. Step 4: Simplify right side
    11,015.40x = 112,907,689.82
  5. Step 5: Solve for x
    x = 112,907,689.82/11,015.40
  6. Step 6: Final answer
    x = 10,249.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.