Home / 13,914.06-20,867.85-6,511.47

Finding the Fourth Proportional to 13,914.06, 20,867.85 and 6,511.47

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Solution

The fourth proportional to 13,914.06, 20,867.85 and 6,511.47 is: 9,765.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.06 : 20,867.85 = 6,511.47 : x
  2. Step 2: Convert to fraction form
    13,914.06/20,867.85 = 6,511.47/x
  3. Step 3: Cross multiply
    13,914.06x = 20,867.85 × 6,511.47
  4. Step 4: Simplify right side
    13,914.06x = 135,880,379.24
  5. Step 5: Solve for x
    x = 135,880,379.24/13,914.06
  6. Step 6: Final answer
    x = 9,765.69

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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.