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Finding the Fourth Proportional to 11,901.94, 17,853.95 and 3,136.86

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Solution

The fourth proportional to 11,901.94, 17,853.95 and 3,136.86 is: 4,705.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,901.94 : 17,853.95 = 3,136.86 : x
  2. Step 2: Convert to fraction form
    11,901.94/17,853.95 = 3,136.86/x
  3. Step 3: Cross multiply
    11,901.94x = 17,853.95 × 3,136.86
  4. Step 4: Simplify right side
    11,901.94x = 56,005,349.44
  5. Step 5: Solve for x
    x = 56,005,349.44/11,901.94
  6. Step 6: Final answer
    x = 4,705.57

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1.5x scale

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.