Home / 13,441.08-20,165.70-5,431.74

Finding the Fourth Proportional to 13,441.08, 20,165.70 and 5,431.74

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Solution

The fourth proportional to 13,441.08, 20,165.70 and 5,431.74 is: 8,149.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.08 : 20,165.70 = 5,431.74 : x
  2. Step 2: Convert to fraction form
    13,441.08/20,165.70 = 5,431.74/x
  3. Step 3: Cross multiply
    13,441.08x = 20,165.70 × 5,431.74
  4. Step 4: Simplify right side
    13,441.08x = 109,534,839.32
  5. Step 5: Solve for x
    x = 109,534,839.32/13,441.08
  6. Step 6: Final answer
    x = 8,149.26

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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.