Home / 18,186.26-25,088.15-11,100.38

Finding the Fourth Proportional to 18,186.26, 25,088.15 and 11,100.38

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Solution

The fourth proportional to 18,186.26, 25,088.15 and 11,100.38 is: 15,313.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,186.26 : 25,088.15 = 11,100.38 : x
  2. Step 2: Convert to fraction form
    18,186.26/25,088.15 = 11,100.38/x
  3. Step 3: Cross multiply
    18,186.26x = 25,088.15 × 11,100.38
  4. Step 4: Simplify right side
    18,186.26x = 278,487,943.00
  5. Step 5: Solve for x
    x = 278,487,943.00/18,186.26
  6. Step 6: Final answer
    x = 15,313.10

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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.