Home / 14,119.82-21,178.58-4,759.64

Finding the Fourth Proportional to 14,119.82, 21,178.58 and 4,759.64

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Solution

The fourth proportional to 14,119.82, 21,178.58 and 4,759.64 is: 7,139.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.82 : 21,178.58 = 4,759.64 : x
  2. Step 2: Convert to fraction form
    14,119.82/21,178.58 = 4,759.64/x
  3. Step 3: Cross multiply
    14,119.82x = 21,178.58 × 4,759.64
  4. Step 4: Simplify right side
    14,119.82x = 100,802,333.45
  5. Step 5: Solve for x
    x = 100,802,333.45/14,119.82
  6. Step 6: Final answer
    x = 7,139.07

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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.