Home / 13,173.12-18,186.24-9,145.92

Finding the Fourth Proportional to 13,173.12, 18,186.24 and 9,145.92

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Solution

The fourth proportional to 13,173.12, 18,186.24 and 9,145.92 is: 12,626.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.12 : 18,186.24 = 9,145.92 : x
  2. Step 2: Convert to fraction form
    13,173.12/18,186.24 = 9,145.92/x
  3. Step 3: Cross multiply
    13,173.12x = 18,186.24 × 9,145.92
  4. Step 4: Simplify right side
    13,173.12x = 166,329,896.14
  5. Step 5: Solve for x
    x = 166,329,896.14/13,173.12
  6. Step 6: Final answer
    x = 12,626.46

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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.