Home / 13,694.04-20,539.44-5,380.20

Finding the Fourth Proportional to 13,694.04, 20,539.44 and 5,380.20

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Solution

The fourth proportional to 13,694.04, 20,539.44 and 5,380.20 is: 8,069.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.04 : 20,539.44 = 5,380.20 : x
  2. Step 2: Convert to fraction form
    13,694.04/20,539.44 = 5,380.20/x
  3. Step 3: Cross multiply
    13,694.04x = 20,539.44 × 5,380.20
  4. Step 4: Simplify right side
    13,694.04x = 110,506,295.09
  5. Step 5: Solve for x
    x = 110,506,295.09/13,694.04
  6. Step 6: Final answer
    x = 8,069.66

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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.