Home / 11,406.06-17,115.02-8,631.90

Finding the Fourth Proportional to 11,406.06, 17,115.02 and 8,631.90

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Solution

The fourth proportional to 11,406.06, 17,115.02 and 8,631.90 is: 12,952.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.06 : 17,115.02 = 8,631.90 : x
  2. Step 2: Convert to fraction form
    11,406.06/17,115.02 = 8,631.90/x
  3. Step 3: Cross multiply
    11,406.06x = 17,115.02 × 8,631.90
  4. Step 4: Simplify right side
    11,406.06x = 147,735,141.14
  5. Step 5: Solve for x
    x = 147,735,141.14/11,406.06
  6. Step 6: Final answer
    x = 12,952.34

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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.