Home / 14,120.68-21,180.04-4,761.48

Finding the Fourth Proportional to 14,120.68, 21,180.04 and 4,761.48

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Solution

The fourth proportional to 14,120.68, 21,180.04 and 4,761.48 is: 7,141.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.68 : 21,180.04 = 4,761.48 : x
  2. Step 2: Convert to fraction form
    14,120.68/21,180.04 = 4,761.48/x
  3. Step 3: Cross multiply
    14,120.68x = 21,180.04 × 4,761.48
  4. Step 4: Simplify right side
    14,120.68x = 100,848,336.86
  5. Step 5: Solve for x
    x = 100,848,336.86/14,120.68
  6. Step 6: Final answer
    x = 7,141.89

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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.