Home / 19,555.46-26,991.39-12,850.18

Finding the Fourth Proportional to 19,555.46, 26,991.39 and 12,850.18

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Solution

The fourth proportional to 19,555.46, 26,991.39 and 12,850.18 is: 17,736.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555.46 : 26,991.39 = 12,850.18 : x
  2. Step 2: Convert to fraction form
    19,555.46/26,991.39 = 12,850.18/x
  3. Step 3: Cross multiply
    19,555.46x = 26,991.39 × 12,850.18
  4. Step 4: Simplify right side
    19,555.46x = 346,844,200.66
  5. Step 5: Solve for x
    x = 346,844,200.66/19,555.46
  6. Step 6: Final answer
    x = 17,736.44

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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.