Home / 13,725.99-20,539.71-8,772.44

Finding the Fourth Proportional to 13,725.99, 20,539.71 and 8,772.44

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Solution

The fourth proportional to 13,725.99, 20,539.71 and 8,772.44 is: 13,127.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.99 : 20,539.71 = 8,772.44 : x
  2. Step 2: Convert to fraction form
    13,725.99/20,539.71 = 8,772.44/x
  3. Step 3: Cross multiply
    13,725.99x = 20,539.71 × 8,772.44
  4. Step 4: Simplify right side
    13,725.99x = 180,183,270.89
  5. Step 5: Solve for x
    x = 180,183,270.89/13,725.99
  6. Step 6: Final answer
    x = 13,127.16

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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.