Home / 12,954.19-19,426.42-4,186.75

Finding the Fourth Proportional to 12,954.19, 19,426.42 and 4,186.75

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Solution

The fourth proportional to 12,954.19, 19,426.42 and 4,186.75 is: 6,278.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954.19 : 19,426.42 = 4,186.75 : x
  2. Step 2: Convert to fraction form
    12,954.19/19,426.42 = 4,186.75/x
  3. Step 3: Cross multiply
    12,954.19x = 19,426.42 × 4,186.75
  4. Step 4: Simplify right side
    12,954.19x = 81,333,563.94
  5. Step 5: Solve for x
    x = 81,333,563.94/12,954.19
  6. Step 6: Final answer
    x = 6,278.55

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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.