Home / 13,775.41-20,663.07-3,914.79

Finding the Fourth Proportional to 13,775.41, 20,663.07 and 3,914.79

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Solution

The fourth proportional to 13,775.41, 20,663.07 and 3,914.79 is: 5,872.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.41 : 20,663.07 = 3,914.79 : x
  2. Step 2: Convert to fraction form
    13,775.41/20,663.07 = 3,914.79/x
  3. Step 3: Cross multiply
    13,775.41x = 20,663.07 × 3,914.79
  4. Step 4: Simplify right side
    13,775.41x = 80,891,579.81
  5. Step 5: Solve for x
    x = 80,891,579.81/13,775.41
  6. Step 6: Final answer
    x = 5,872.17

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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.