Home / 13,645.96-20,466.91-3,784.21

Finding the Fourth Proportional to 13,645.96, 20,466.91 and 3,784.21

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Solution

The fourth proportional to 13,645.96, 20,466.91 and 3,784.21 is: 5,675.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.96 : 20,466.91 = 3,784.21 : x
  2. Step 2: Convert to fraction form
    13,645.96/20,466.91 = 3,784.21/x
  3. Step 3: Cross multiply
    13,645.96x = 20,466.91 × 3,784.21
  4. Step 4: Simplify right side
    13,645.96x = 77,451,085.49
  5. Step 5: Solve for x
    x = 77,451,085.49/13,645.96
  6. Step 6: Final answer
    x = 5,675.75

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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.