Home / 13,441.86-20,162.79-6,511.50

Finding the Fourth Proportional to 13,441.86, 20,162.79 and 6,511.50

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Solution

The fourth proportional to 13,441.86, 20,162.79 and 6,511.50 is: 9,767.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.86 : 20,162.79 = 6,511.50 : x
  2. Step 2: Convert to fraction form
    13,441.86/20,162.79 = 6,511.50/x
  3. Step 3: Cross multiply
    13,441.86x = 20,162.79 × 6,511.50
  4. Step 4: Simplify right side
    13,441.86x = 131,290,007.09
  5. Step 5: Solve for x
    x = 131,290,007.09/13,441.86
  6. Step 6: Final answer
    x = 9,767.25

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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.