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Finding the Fourth Proportional to 7,348.87, 10,137.99 and 7,066.09

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Solution

The fourth proportional to 7,348.87, 10,137.99 and 7,066.09 is: 9,747.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,348.87 : 10,137.99 = 7,066.09 : x
  2. Step 2: Convert to fraction form
    7,348.87/10,137.99 = 7,066.09/x
  3. Step 3: Cross multiply
    7,348.87x = 10,137.99 × 7,066.09
  4. Step 4: Simplify right side
    7,348.87x = 71,635,949.76
  5. Step 5: Solve for x
    x = 71,635,949.76/7,348.87
  6. Step 6: Final answer
    x = 9,747.89

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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.