Home / 14,118.78-21,179.81-4,755.59

Finding the Fourth Proportional to 14,118.78, 21,179.81 and 4,755.59

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Solution

The fourth proportional to 14,118.78, 21,179.81 and 4,755.59 is: 7,133.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.78 : 21,179.81 = 4,755.59 : x
  2. Step 2: Convert to fraction form
    14,118.78/21,179.81 = 4,755.59/x
  3. Step 3: Cross multiply
    14,118.78x = 21,179.81 × 4,755.59
  4. Step 4: Simplify right side
    14,118.78x = 100,722,362.96
  5. Step 5: Solve for x
    x = 100,722,362.96/14,118.78
  6. Step 6: Final answer
    x = 7,133.93

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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.