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Finding the Fourth Proportional to 7,387.23, 11,008.83 and 7,173.99

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Solution

The fourth proportional to 7,387.23, 11,008.83 and 7,173.99 is: 10,691.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387.23 : 11,008.83 = 7,173.99 : x
  2. Step 2: Convert to fraction form
    7,387.23/11,008.83 = 7,173.99/x
  3. Step 3: Cross multiply
    7,387.23x = 11,008.83 × 7,173.99
  4. Step 4: Simplify right side
    7,387.23x = 78,977,236.33
  5. Step 5: Solve for x
    x = 78,977,236.33/7,387.23
  6. Step 6: Final answer
    x = 10,691.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.