Home / 11,974.62-16,511.30-8,985.72

Finding the Fourth Proportional to 11,974.62, 16,511.30 and 8,985.72

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Solution

The fourth proportional to 11,974.62, 16,511.30 and 8,985.72 is: 12,390.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,974.62 : 16,511.30 = 8,985.72 : x
  2. Step 2: Convert to fraction form
    11,974.62/16,511.30 = 8,985.72/x
  3. Step 3: Cross multiply
    11,974.62x = 16,511.30 × 8,985.72
  4. Step 4: Simplify right side
    11,974.62x = 148,365,918.64
  5. Step 5: Solve for x
    x = 148,365,918.64/11,974.62
  6. Step 6: Final answer
    x = 12,390.03

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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.