Home / 13,885.85-20,828.76-4,525.86

Finding the Fourth Proportional to 13,885.85, 20,828.76 and 4,525.86

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Solution

The fourth proportional to 13,885.85, 20,828.76 and 4,525.86 is: 6,788.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,885.85 : 20,828.76 = 4,525.86 : x
  2. Step 2: Convert to fraction form
    13,885.85/20,828.76 = 4,525.86/x
  3. Step 3: Cross multiply
    13,885.85x = 20,828.76 × 4,525.86
  4. Step 4: Simplify right side
    13,885.85x = 94,268,051.73
  5. Step 5: Solve for x
    x = 94,268,051.73/13,885.85
  6. Step 6: Final answer
    x = 6,788.79

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Similar ratio
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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.