Home / 13,725.45-20,592.50-8,185.05

Finding the Fourth Proportional to 13,725.45, 20,592.50 and 8,185.05

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Solution

The fourth proportional to 13,725.45, 20,592.50 and 8,185.05 is: 12,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.45 : 20,592.50 = 8,185.05 : x
  2. Step 2: Convert to fraction form
    13,725.45/20,592.50 = 8,185.05/x
  3. Step 3: Cross multiply
    13,725.45x = 20,592.50 × 8,185.05
  4. Step 4: Simplify right side
    13,725.45x = 168,550,601.20
  5. Step 5: Solve for x
    x = 168,550,601.20/13,725.45
  6. Step 6: Final answer
    x = 12,280.15

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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.