Home / 11,961.46-16,511.41-8,985.93

Finding the Fourth Proportional to 11,961.46, 16,511.41 and 8,985.93

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Solution

The fourth proportional to 11,961.46, 16,511.41 and 8,985.93 is: 12,404.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.46 : 16,511.41 = 8,985.93 : x
  2. Step 2: Convert to fraction form
    11,961.46/16,511.41 = 8,985.93/x
  3. Step 3: Cross multiply
    11,961.46x = 16,511.41 × 8,985.93
  4. Step 4: Simplify right side
    11,961.46x = 148,370,291.90
  5. Step 5: Solve for x
    x = 148,370,291.90/11,961.46
  6. Step 6: Final answer
    x = 12,404.03

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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.