Home / 11,999.04-17,990.76-4,977.12

Finding the Fourth Proportional to 11,999.04, 17,990.76 and 4,977.12

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Solution

The fourth proportional to 11,999.04, 17,990.76 and 4,977.12 is: 7,462.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.04 : 17,990.76 = 4,977.12 : x
  2. Step 2: Convert to fraction form
    11,999.04/17,990.76 = 4,977.12/x
  3. Step 3: Cross multiply
    11,999.04x = 17,990.76 × 4,977.12
  4. Step 4: Simplify right side
    11,999.04x = 89,542,171.41
  5. Step 5: Solve for x
    x = 89,542,171.41/11,999.04
  6. Step 6: Final answer
    x = 7,462.44

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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.