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Finding the Fourth Proportional to 8,008.20, 12,072.38 and 7,473

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Solution

The fourth proportional to 8,008.20, 12,072.38 and 7,473 is: 11,265.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,008.20 : 12,072.38 = 7,473 : x
  2. Step 2: Convert to fraction form
    8,008.20/12,072.38 = 7,473/x
  3. Step 3: Cross multiply
    8,008.20x = 12,072.38 × 7,473
  4. Step 4: Simplify right side
    8,008.20x = 90,216,858.38
  5. Step 5: Solve for x
    x = 90,216,858.38/8,008.20
  6. Step 6: Final answer
    x = 11,265.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.