Home / 18,147.04-27,223.74-8,287.31

Finding the Fourth Proportional to 18,147.04, 27,223.74 and 8,287.31

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Solution

The fourth proportional to 18,147.04, 27,223.74 and 8,287.31 is: 12,432.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.04 : 27,223.74 = 8,287.31 : x
  2. Step 2: Convert to fraction form
    18,147.04/27,223.74 = 8,287.31/x
  3. Step 3: Cross multiply
    18,147.04x = 27,223.74 × 8,287.31
  4. Step 4: Simplify right side
    18,147.04x = 225,611,640.80
  5. Step 5: Solve for x
    x = 225,611,640.80/18,147.04
  6. Step 6: Final answer
    x = 12,432.42

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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.