Home / 13,609.20-20,414.88-4,248.84

Finding the Fourth Proportional to 13,609.20, 20,414.88 and 4,248.84

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Solution

The fourth proportional to 13,609.20, 20,414.88 and 4,248.84 is: 6,373.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.20 : 20,414.88 = 4,248.84 : x
  2. Step 2: Convert to fraction form
    13,609.20/20,414.88 = 4,248.84/x
  3. Step 3: Cross multiply
    13,609.20x = 20,414.88 × 4,248.84
  4. Step 4: Simplify right side
    13,609.20x = 86,739,558.74
  5. Step 5: Solve for x
    x = 86,739,558.74/13,609.20
  6. Step 6: Final answer
    x = 6,373.60

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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.