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Finding the Fourth Proportional to 12,057.95, 18,169.08 and 9,914.69

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Solution

The fourth proportional to 12,057.95, 18,169.08 and 9,914.69 is: 14,939.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,057.95 : 18,169.08 = 9,914.69 : x
  2. Step 2: Convert to fraction form
    12,057.95/18,169.08 = 9,914.69/x
  3. Step 3: Cross multiply
    12,057.95x = 18,169.08 × 9,914.69
  4. Step 4: Simplify right side
    12,057.95x = 180,140,704.94
  5. Step 5: Solve for x
    x = 180,140,704.94/12,057.95
  6. Step 6: Final answer
    x = 14,939.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.