Home / 13,408.82-20,114.25-3,547.84

Finding the Fourth Proportional to 13,408.82, 20,114.25 and 3,547.84

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Solution

The fourth proportional to 13,408.82, 20,114.25 and 3,547.84 is: 5,322.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.82 : 20,114.25 = 3,547.84 : x
  2. Step 2: Convert to fraction form
    13,408.82/20,114.25 = 3,547.84/x
  3. Step 3: Cross multiply
    13,408.82x = 20,114.25 × 3,547.84
  4. Step 4: Simplify right side
    13,408.82x = 71,362,140.72
  5. Step 5: Solve for x
    x = 71,362,140.72/13,408.82
  6. Step 6: Final answer
    x = 5,322.03

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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.