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Finding the Fourth Proportional to 13,512.62, 20,267.93 and 4,747.62

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Solution

The fourth proportional to 13,512.62, 20,267.93 and 4,747.62 is: 7,121.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.62 : 20,267.93 = 4,747.62 : x
  2. Step 2: Convert to fraction form
    13,512.62/20,267.93 = 4,747.62/x
  3. Step 3: Cross multiply
    13,512.62x = 20,267.93 × 4,747.62
  4. Step 4: Simplify right side
    13,512.62x = 96,224,429.83
  5. Step 5: Solve for x
    x = 96,224,429.83/13,512.62
  6. Step 6: Final answer
    x = 7,121.08

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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.