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Finding the Fourth Proportional to 7,273.80, 10,910.70 and 7,164.45

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Solution

The fourth proportional to 7,273.80, 10,910.70 and 7,164.45 is: 10,746.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,273.80 : 10,910.70 = 7,164.45 : x
  2. Step 2: Convert to fraction form
    7,273.80/10,910.70 = 7,164.45/x
  3. Step 3: Cross multiply
    7,273.80x = 10,910.70 × 7,164.45
  4. Step 4: Simplify right side
    7,273.80x = 78,169,164.62
  5. Step 5: Solve for x
    x = 78,169,164.62/7,273.80
  6. Step 6: Final answer
    x = 10,746.68

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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.