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Finding the Fourth Proportional to 13,476.92, 20,212.50 and 4,114.92

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Solution

The fourth proportional to 13,476.92, 20,212.50 and 4,114.92 is: 6,171.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,476.92 : 20,212.50 = 4,114.92 : x
  2. Step 2: Convert to fraction form
    13,476.92/20,212.50 = 4,114.92/x
  3. Step 3: Cross multiply
    13,476.92x = 20,212.50 × 4,114.92
  4. Step 4: Simplify right side
    13,476.92x = 83,172,820.50
  5. Step 5: Solve for x
    x = 83,172,820.50/13,476.92
  6. Step 6: Final answer
    x = 6,171.50

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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.