Home / 13,521.97-20,282.65-6,121.07

Finding the Fourth Proportional to 13,521.97, 20,282.65 and 6,121.07

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Solution

The fourth proportional to 13,521.97, 20,282.65 and 6,121.07 is: 9,181.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.97 : 20,282.65 = 6,121.07 : x
  2. Step 2: Convert to fraction form
    13,521.97/20,282.65 = 6,121.07/x
  3. Step 3: Cross multiply
    13,521.97x = 20,282.65 × 6,121.07
  4. Step 4: Simplify right side
    13,521.97x = 124,151,520.44
  5. Step 5: Solve for x
    x = 124,151,520.44/13,521.97
  6. Step 6: Final answer
    x = 9,181.47

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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.