Home / 18,869.94-26,046.50-12,899.43

Finding the Fourth Proportional to 18,869.94, 26,046.50 and 12,899.43

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Solution

The fourth proportional to 18,869.94, 26,046.50 and 12,899.43 is: 17,805.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869.94 : 26,046.50 = 12,899.43 : x
  2. Step 2: Convert to fraction form
    18,869.94/26,046.50 = 12,899.43/x
  3. Step 3: Cross multiply
    18,869.94x = 26,046.50 × 12,899.43
  4. Step 4: Simplify right side
    18,869.94x = 335,984,939.00
  5. Step 5: Solve for x
    x = 335,984,939.00/18,869.94
  6. Step 6: Final answer
    x = 17,805.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.