Home / 15,964.80-22,033.48-9,161.48

Finding the Fourth Proportional to 15,964.80, 22,033.48 and 9,161.48

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Solution

The fourth proportional to 15,964.80, 22,033.48 and 9,161.48 is: 12,644.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,964.80 : 22,033.48 = 9,161.48 : x
  2. Step 2: Convert to fraction form
    15,964.80/22,033.48 = 9,161.48/x
  3. Step 3: Cross multiply
    15,964.80x = 22,033.48 × 9,161.48
  4. Step 4: Simplify right side
    15,964.80x = 201,859,286.35
  5. Step 5: Solve for x
    x = 201,859,286.35/15,964.80
  6. Step 6: Final answer
    x = 12,644.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.