Home / 11,990.03-16,542.98-6,815.83

Finding the Fourth Proportional to 11,990.03, 16,542.98 and 6,815.83

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Solution

The fourth proportional to 11,990.03, 16,542.98 and 6,815.83 is: 9,403.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.03 : 16,542.98 = 6,815.83 : x
  2. Step 2: Convert to fraction form
    11,990.03/16,542.98 = 6,815.83/x
  3. Step 3: Cross multiply
    11,990.03x = 16,542.98 × 6,815.83
  4. Step 4: Simplify right side
    11,990.03x = 112,754,115.06
  5. Step 5: Solve for x
    x = 112,754,115.06/11,990.03
  6. Step 6: Final answer
    x = 9,403.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.