Home / 13,330.38-18,396.78-7,362.06

Finding the Fourth Proportional to 13,330.38, 18,396.78 and 7,362.06

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Solution

The fourth proportional to 13,330.38, 18,396.78 and 7,362.06 is: 10,160.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.38 : 18,396.78 = 7,362.06 : x
  2. Step 2: Convert to fraction form
    13,330.38/18,396.78 = 7,362.06/x
  3. Step 3: Cross multiply
    13,330.38x = 18,396.78 × 7,362.06
  4. Step 4: Simplify right side
    13,330.38x = 135,438,198.17
  5. Step 5: Solve for x
    x = 135,438,198.17/13,330.38
  6. Step 6: Final answer
    x = 10,160.12

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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.