Home / 13,847.50-20,777.33-7,272.15

Finding the Fourth Proportional to 13,847.50, 20,777.33 and 7,272.15

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Solution

The fourth proportional to 13,847.50, 20,777.33 and 7,272.15 is: 10,911.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,847.50 : 20,777.33 = 7,272.15 : x
  2. Step 2: Convert to fraction form
    13,847.50/20,777.33 = 7,272.15/x
  3. Step 3: Cross multiply
    13,847.50x = 20,777.33 × 7,272.15
  4. Step 4: Simplify right side
    13,847.50x = 151,095,860.36
  5. Step 5: Solve for x
    x = 151,095,860.36/13,847.50
  6. Step 6: Final answer
    x = 10,911.42

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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.