Home / 12,079.70-18,118.73-3,313.88

Finding the Fourth Proportional to 12,079.70, 18,118.73 and 3,313.88

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Solution

The fourth proportional to 12,079.70, 18,118.73 and 3,313.88 is: 4,970.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.70 : 18,118.73 = 3,313.88 : x
  2. Step 2: Convert to fraction form
    12,079.70/18,118.73 = 3,313.88/x
  3. Step 3: Cross multiply
    12,079.70x = 18,118.73 × 3,313.88
  4. Step 4: Simplify right side
    12,079.70x = 60,043,214.66
  5. Step 5: Solve for x
    x = 60,043,214.66/12,079.70
  6. Step 6: Final answer
    x = 4,970.59

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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.