Home / 12,543.05-18,814.83-3,659.03

Finding the Fourth Proportional to 12,543.05, 18,814.83 and 3,659.03

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Solution

The fourth proportional to 12,543.05, 18,814.83 and 3,659.03 is: 5,488.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.05 : 18,814.83 = 3,659.03 : x
  2. Step 2: Convert to fraction form
    12,543.05/18,814.83 = 3,659.03/x
  3. Step 3: Cross multiply
    12,543.05x = 18,814.83 × 3,659.03
  4. Step 4: Simplify right side
    12,543.05x = 68,844,027.41
  5. Step 5: Solve for x
    x = 68,844,027.41/12,543.05
  6. Step 6: Final answer
    x = 5,488.62

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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.