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Finding the Fourth Proportional to 7,230.50, 9,918.08 and 7,168.10

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Solution

The fourth proportional to 7,230.50, 9,918.08 and 7,168.10 is: 9,832.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230.50 : 9,918.08 = 7,168.10 : x
  2. Step 2: Convert to fraction form
    7,230.50/9,918.08 = 7,168.10/x
  3. Step 3: Cross multiply
    7,230.50x = 9,918.08 × 7,168.10
  4. Step 4: Simplify right side
    7,230.50x = 71,093,789.25
  5. Step 5: Solve for x
    x = 71,093,789.25/7,230.50
  6. Step 6: Final answer
    x = 9,832.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.