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Finding the Fourth Proportional to 7,173.50, 9,893.95 and 5,190.62

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Solution

The fourth proportional to 7,173.50, 9,893.95 and 5,190.62 is: 7,159.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,173.50 : 9,893.95 = 5,190.62 : x
  2. Step 2: Convert to fraction form
    7,173.50/9,893.95 = 5,190.62/x
  3. Step 3: Cross multiply
    7,173.50x = 9,893.95 × 5,190.62
  4. Step 4: Simplify right side
    7,173.50x = 51,355,672.30
  5. Step 5: Solve for x
    x = 51,355,672.30/7,173.50
  6. Step 6: Final answer
    x = 7,159.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.