Home / 13,711.38-20,563.86-3,851.60

Finding the Fourth Proportional to 13,711.38, 20,563.86 and 3,851.60

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Solution

The fourth proportional to 13,711.38, 20,563.86 and 3,851.60 is: 5,776.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.38 : 20,563.86 = 3,851.60 : x
  2. Step 2: Convert to fraction form
    13,711.38/20,563.86 = 3,851.60/x
  3. Step 3: Cross multiply
    13,711.38x = 20,563.86 × 3,851.60
  4. Step 4: Simplify right side
    13,711.38x = 79,203,763.18
  5. Step 5: Solve for x
    x = 79,203,763.18/13,711.38
  6. Step 6: Final answer
    x = 5,776.50

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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.