Home / 13,829.12-20,743.59-8,284.04

Finding the Fourth Proportional to 13,829.12, 20,743.59 and 8,284.04

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Solution

The fourth proportional to 13,829.12, 20,743.59 and 8,284.04 is: 12,426.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.12 : 20,743.59 = 8,284.04 : x
  2. Step 2: Convert to fraction form
    13,829.12/20,743.59 = 8,284.04/x
  3. Step 3: Cross multiply
    13,829.12x = 20,743.59 × 8,284.04
  4. Step 4: Simplify right side
    13,829.12x = 171,840,729.30
  5. Step 5: Solve for x
    x = 171,840,729.30/13,829.12
  6. Step 6: Final answer
    x = 12,426.01

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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.