Home / 12,286.80-18,433.07-3,521.47

Finding the Fourth Proportional to 12,286.80, 18,433.07 and 3,521.47

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Solution

The fourth proportional to 12,286.80, 18,433.07 and 3,521.47 is: 5,283.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.80 : 18,433.07 = 3,521.47 : x
  2. Step 2: Convert to fraction form
    12,286.80/18,433.07 = 3,521.47/x
  3. Step 3: Cross multiply
    12,286.80x = 18,433.07 × 3,521.47
  4. Step 4: Simplify right side
    12,286.80x = 64,911,503.01
  5. Step 5: Solve for x
    x = 64,911,503.01/12,286.80
  6. Step 6: Final answer
    x = 5,283.03

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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.