Home / 12,619.64-18,926.82-4,299.59

Finding the Fourth Proportional to 12,619.64, 18,926.82 and 4,299.59

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Solution

The fourth proportional to 12,619.64, 18,926.82 and 4,299.59 is: 6,448.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619.64 : 18,926.82 = 4,299.59 : x
  2. Step 2: Convert to fraction form
    12,619.64/18,926.82 = 4,299.59/x
  3. Step 3: Cross multiply
    12,619.64x = 18,926.82 × 4,299.59
  4. Step 4: Simplify right side
    12,619.64x = 81,377,566.00
  5. Step 5: Solve for x
    x = 81,377,566.00/12,619.64
  6. Step 6: Final answer
    x = 6,448.49

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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.