Home / 13,493.76-20,238.35-3,630.84

Finding the Fourth Proportional to 13,493.76, 20,238.35 and 3,630.84

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Solution

The fourth proportional to 13,493.76, 20,238.35 and 3,630.84 is: 5,445.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,493.76 : 20,238.35 = 3,630.84 : x
  2. Step 2: Convert to fraction form
    13,493.76/20,238.35 = 3,630.84/x
  3. Step 3: Cross multiply
    13,493.76x = 20,238.35 × 3,630.84
  4. Step 4: Simplify right side
    13,493.76x = 73,482,116.67
  5. Step 5: Solve for x
    x = 73,482,116.67/13,493.76
  6. Step 6: Final answer
    x = 5,445.64

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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.