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Finding the Fourth Proportional to 7,687.99, 10,610.40 and 5,326.03

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Solution

The fourth proportional to 7,687.99, 10,610.40 and 5,326.03 is: 7,350.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.99 : 10,610.40 = 5,326.03 : x
  2. Step 2: Convert to fraction form
    7,687.99/10,610.40 = 5,326.03/x
  3. Step 3: Cross multiply
    7,687.99x = 10,610.40 × 5,326.03
  4. Step 4: Simplify right side
    7,687.99x = 56,511,308.71
  5. Step 5: Solve for x
    x = 56,511,308.71/7,687.99
  6. Step 6: Final answer
    x = 7,350.60

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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.