Home / 8,002.88-12,004.97-2,159.40

Finding the Fourth Proportional to 8,002.88, 12,004.97 and 2,159.40

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Solution

The fourth proportional to 8,002.88, 12,004.97 and 2,159.40 is: 3,239.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,002.88 : 12,004.97 = 2,159.40 : x
  2. Step 2: Convert to fraction form
    8,002.88/12,004.97 = 2,159.40/x
  3. Step 3: Cross multiply
    8,002.88x = 12,004.97 × 2,159.40
  4. Step 4: Simplify right side
    8,002.88x = 25,923,566.44
  5. Step 5: Solve for x
    x = 25,923,566.44/8,002.88
  6. Step 6: Final answer
    x = 3,239.28

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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.