Home / 12,187.12-18,276.89-4,394.92

Finding the Fourth Proportional to 12,187.12, 18,276.89 and 4,394.92

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Solution

The fourth proportional to 12,187.12, 18,276.89 and 4,394.92 is: 6,591.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.12 : 18,276.89 = 4,394.92 : x
  2. Step 2: Convert to fraction form
    12,187.12/18,276.89 = 4,394.92/x
  3. Step 3: Cross multiply
    12,187.12x = 18,276.89 × 4,394.92
  4. Step 4: Simplify right side
    12,187.12x = 80,325,389.00
  5. Step 5: Solve for x
    x = 80,325,389.00/12,187.12
  6. Step 6: Final answer
    x = 6,591.01

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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.