Home / 13,186.08-18,183.15-11,304.18

Finding the Fourth Proportional to 13,186.08, 18,183.15 and 11,304.18

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Solution

The fourth proportional to 13,186.08, 18,183.15 and 11,304.18 is: 15,588.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.08 : 18,183.15 = 11,304.18 : x
  2. Step 2: Convert to fraction form
    13,186.08/18,183.15 = 11,304.18/x
  3. Step 3: Cross multiply
    13,186.08x = 18,183.15 × 11,304.18
  4. Step 4: Simplify right side
    13,186.08x = 205,545,600.57
  5. Step 5: Solve for x
    x = 205,545,600.57/13,186.08
  6. Step 6: Final answer
    x = 15,588.07

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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.