Home / 12,330.12-17,014.68-7,614.48

Finding the Fourth Proportional to 12,330.12, 17,014.68 and 7,614.48

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Solution

The fourth proportional to 12,330.12, 17,014.68 and 7,614.48 is: 10,507.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,330.12 : 17,014.68 = 7,614.48 : x
  2. Step 2: Convert to fraction form
    12,330.12/17,014.68 = 7,614.48/x
  3. Step 3: Cross multiply
    12,330.12x = 17,014.68 × 7,614.48
  4. Step 4: Simplify right side
    12,330.12x = 129,557,940.57
  5. Step 5: Solve for x
    x = 129,557,940.57/12,330.12
  6. Step 6: Final answer
    x = 10,507.44

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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.