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Finding the Fourth Proportional to 8,159.94, 12,239.92 and 2,003.94

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Solution

The fourth proportional to 8,159.94, 12,239.92 and 2,003.94 is: 3,005.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159.94 : 12,239.92 = 2,003.94 : x
  2. Step 2: Convert to fraction form
    8,159.94/12,239.92 = 2,003.94/x
  3. Step 3: Cross multiply
    8,159.94x = 12,239.92 × 2,003.94
  4. Step 4: Simplify right side
    8,159.94x = 24,528,065.28
  5. Step 5: Solve for x
    x = 24,528,065.28/8,159.94
  6. Step 6: Final answer
    x = 3,005.91

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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.