Home / 13,771.04-20,656.56-13,069.84

Finding the Fourth Proportional to 13,771.04, 20,656.56 and 13,069.84

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Solution

The fourth proportional to 13,771.04, 20,656.56 and 13,069.84 is: 19,604.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771.04 : 20,656.56 = 13,069.84 : x
  2. Step 2: Convert to fraction form
    13,771.04/20,656.56 = 13,069.84/x
  3. Step 3: Cross multiply
    13,771.04x = 20,656.56 × 13,069.84
  4. Step 4: Simplify right side
    13,771.04x = 269,977,934.15
  5. Step 5: Solve for x
    x = 269,977,934.15/13,771.04
  6. Step 6: Final answer
    x = 19,604.76

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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.