Home / 13,186.24-18,201.62-8,154.32

Finding the Fourth Proportional to 13,186.24, 18,201.62 and 8,154.32

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Solution

The fourth proportional to 13,186.24, 18,201.62 and 8,154.32 is: 11,255.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.24 : 18,201.62 = 8,154.32 : x
  2. Step 2: Convert to fraction form
    13,186.24/18,201.62 = 8,154.32/x
  3. Step 3: Cross multiply
    13,186.24x = 18,201.62 × 8,154.32
  4. Step 4: Simplify right side
    13,186.24x = 148,421,834.00
  5. Step 5: Solve for x
    x = 148,421,834.00/13,186.24
  6. Step 6: Final answer
    x = 11,255.81

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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.