Home / 13,441.80-20,169.90-5,656.08

Finding the Fourth Proportional to 13,441.80, 20,169.90 and 5,656.08

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Solution

The fourth proportional to 13,441.80, 20,169.90 and 5,656.08 is: 8,487.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.80 : 20,169.90 = 5,656.08 : x
  2. Step 2: Convert to fraction form
    13,441.80/20,169.90 = 5,656.08/x
  3. Step 3: Cross multiply
    13,441.80x = 20,169.90 × 5,656.08
  4. Step 4: Simplify right side
    13,441.80x = 114,082,567.99
  5. Step 5: Solve for x
    x = 114,082,567.99/13,441.80
  6. Step 6: Final answer
    x = 8,487.15

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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.