Home / 12,005.08-17,999.92-4,989.96

Finding the Fourth Proportional to 12,005.08, 17,999.92 and 4,989.96

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Solution

The fourth proportional to 12,005.08, 17,999.92 and 4,989.96 is: 7,481.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,005.08 : 17,999.92 = 4,989.96 : x
  2. Step 2: Convert to fraction form
    12,005.08/17,999.92 = 4,989.96/x
  3. Step 3: Cross multiply
    12,005.08x = 17,999.92 × 4,989.96
  4. Step 4: Simplify right side
    12,005.08x = 89,818,880.80
  5. Step 5: Solve for x
    x = 89,818,880.80/12,005.08
  6. Step 6: Final answer
    x = 7,481.74

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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.