Home / 12,147.66-18,231.39-6,305.94

Finding the Fourth Proportional to 12,147.66, 18,231.39 and 6,305.94

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Solution

The fourth proportional to 12,147.66, 18,231.39 and 6,305.94 is: 9,464.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,147.66 : 18,231.39 = 6,305.94 : x
  2. Step 2: Convert to fraction form
    12,147.66/18,231.39 = 6,305.94/x
  3. Step 3: Cross multiply
    12,147.66x = 18,231.39 × 6,305.94
  4. Step 4: Simplify right side
    12,147.66x = 114,966,051.46
  5. Step 5: Solve for x
    x = 114,966,051.46/12,147.66
  6. Step 6: Final answer
    x = 9,464.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.