Home / 13,889.05-20,840.21-6,492.44

Finding the Fourth Proportional to 13,889.05, 20,840.21 and 6,492.44

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Solution

The fourth proportional to 13,889.05, 20,840.21 and 6,492.44 is: 9,741.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.05 : 20,840.21 = 6,492.44 : x
  2. Step 2: Convert to fraction form
    13,889.05/20,840.21 = 6,492.44/x
  3. Step 3: Cross multiply
    13,889.05x = 20,840.21 × 6,492.44
  4. Step 4: Simplify right side
    13,889.05x = 135,303,692.58
  5. Step 5: Solve for x
    x = 135,303,692.58/13,889.05
  6. Step 6: Final answer
    x = 9,741.75

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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.