Home / 11,972.54-16,520.19-6,666.14

Finding the Fourth Proportional to 11,972.54, 16,520.19 and 6,666.14

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Solution

The fourth proportional to 11,972.54, 16,520.19 and 6,666.14 is: 9,198.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.54 : 16,520.19 = 6,666.14 : x
  2. Step 2: Convert to fraction form
    11,972.54/16,520.19 = 6,666.14/x
  3. Step 3: Cross multiply
    11,972.54x = 16,520.19 × 6,666.14
  4. Step 4: Simplify right side
    11,972.54x = 110,125,899.37
  5. Step 5: Solve for x
    x = 110,125,899.37/11,972.54
  6. Step 6: Final answer
    x = 9,198.21

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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.