Home / 7,658.31-11,477.73-6,618.27

Finding the Fourth Proportional to 7,658.31, 11,477.73 and 6,618.27

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Solution

The fourth proportional to 7,658.31, 11,477.73 and 6,618.27 is: 9,918.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,658.31 : 11,477.73 = 6,618.27 : x
  2. Step 2: Convert to fraction form
    7,658.31/11,477.73 = 6,618.27/x
  3. Step 3: Cross multiply
    7,658.31x = 11,477.73 × 6,618.27
  4. Step 4: Simplify right side
    7,658.31x = 75,962,716.13
  5. Step 5: Solve for x
    x = 75,962,716.13/7,658.31
  6. Step 6: Final answer
    x = 9,918.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.