Home / 18,549.55-25,584.08-12,884.21

Finding the Fourth Proportional to 18,549.55, 25,584.08 and 12,884.21

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Solution

The fourth proportional to 18,549.55, 25,584.08 and 12,884.21 is: 17,770.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.55 : 25,584.08 = 12,884.21 : x
  2. Step 2: Convert to fraction form
    18,549.55/25,584.08 = 12,884.21/x
  3. Step 3: Cross multiply
    18,549.55x = 25,584.08 × 12,884.21
  4. Step 4: Simplify right side
    18,549.55x = 329,630,467.04
  5. Step 5: Solve for x
    x = 329,630,467.04/18,549.55
  6. Step 6: Final answer
    x = 17,770.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.