Home / 13,940.73-20,909.53-4,080.08

Finding the Fourth Proportional to 13,940.73, 20,909.53 and 4,080.08

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Solution

The fourth proportional to 13,940.73, 20,909.53 and 4,080.08 is: 6,119.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.73 : 20,909.53 = 4,080.08 : x
  2. Step 2: Convert to fraction form
    13,940.73/20,909.53 = 4,080.08/x
  3. Step 3: Cross multiply
    13,940.73x = 20,909.53 × 4,080.08
  4. Step 4: Simplify right side
    13,940.73x = 85,312,555.16
  5. Step 5: Solve for x
    x = 85,312,555.16/13,940.73
  6. Step 6: Final answer
    x = 6,119.66

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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.