Home / 17,618.98-26,380.79-12,903.26

Finding the Fourth Proportional to 17,618.98, 26,380.79 and 12,903.26

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Solution

The fourth proportional to 17,618.98, 26,380.79 and 12,903.26 is: 19,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,618.98 : 26,380.79 = 12,903.26 : x
  2. Step 2: Convert to fraction form
    17,618.98/26,380.79 = 12,903.26/x
  3. Step 3: Cross multiply
    17,618.98x = 26,380.79 × 12,903.26
  4. Step 4: Simplify right side
    17,618.98x = 340,398,191.66
  5. Step 5: Solve for x
    x = 340,398,191.66/17,618.98
  6. Step 6: Final answer
    x = 19,319.97

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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.