Home / 12,114.20-18,165.81-4,993.49

Finding the Fourth Proportional to 12,114.20, 18,165.81 and 4,993.49

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Solution

The fourth proportional to 12,114.20, 18,165.81 and 4,993.49 is: 7,487.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114.20 : 18,165.81 = 4,993.49 : x
  2. Step 2: Convert to fraction form
    12,114.20/18,165.81 = 4,993.49/x
  3. Step 3: Cross multiply
    12,114.20x = 18,165.81 × 4,993.49
  4. Step 4: Simplify right side
    12,114.20x = 90,710,790.58
  5. Step 5: Solve for x
    x = 90,710,790.58/12,114.20
  6. Step 6: Final answer
    x = 7,487.97

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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.