Home / 13,176.33-18,185.07-7,513.12

Finding the Fourth Proportional to 13,176.33, 18,185.07 and 7,513.12

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Solution

The fourth proportional to 13,176.33, 18,185.07 and 7,513.12 is: 10,369.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.33 : 18,185.07 = 7,513.12 : x
  2. Step 2: Convert to fraction form
    13,176.33/18,185.07 = 7,513.12/x
  3. Step 3: Cross multiply
    13,176.33x = 18,185.07 × 7,513.12
  4. Step 4: Simplify right side
    13,176.33x = 136,626,613.12
  5. Step 5: Solve for x
    x = 136,626,613.12/13,176.33
  6. Step 6: Final answer
    x = 10,369.09

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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.