Home / 8,239.44-12,359.06-1,999.50

Finding the Fourth Proportional to 8,239.44, 12,359.06 and 1,999.50

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Solution

The fourth proportional to 8,239.44, 12,359.06 and 1,999.50 is: 2,999.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.44 : 12,359.06 = 1,999.50 : x
  2. Step 2: Convert to fraction form
    8,239.44/12,359.06 = 1,999.50/x
  3. Step 3: Cross multiply
    8,239.44x = 12,359.06 × 1,999.50
  4. Step 4: Simplify right side
    8,239.44x = 24,711,930.47
  5. Step 5: Solve for x
    x = 24,711,930.47/8,239.44
  6. Step 6: Final answer
    x = 2,999.22

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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.