Home / 13,655.54-18,850.46-9,181.88

Finding the Fourth Proportional to 13,655.54, 18,850.46 and 9,181.88

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Solution

The fourth proportional to 13,655.54, 18,850.46 and 9,181.88 is: 12,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.54 : 18,850.46 = 9,181.88 : x
  2. Step 2: Convert to fraction form
    13,655.54/18,850.46 = 9,181.88/x
  3. Step 3: Cross multiply
    13,655.54x = 18,850.46 × 9,181.88
  4. Step 4: Simplify right side
    13,655.54x = 173,082,661.66
  5. Step 5: Solve for x
    x = 173,082,661.66/13,655.54
  6. Step 6: Final answer
    x = 12,674.90

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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.