Home / 13,943.36-20,914.80-3,554.96

Finding the Fourth Proportional to 13,943.36, 20,914.80 and 3,554.96

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Solution

The fourth proportional to 13,943.36, 20,914.80 and 3,554.96 is: 5,332.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.36 : 20,914.80 = 3,554.96 : x
  2. Step 2: Convert to fraction form
    13,943.36/20,914.80 = 3,554.96/x
  3. Step 3: Cross multiply
    13,943.36x = 20,914.80 × 3,554.96
  4. Step 4: Simplify right side
    13,943.36x = 74,351,277.41
  5. Step 5: Solve for x
    x = 74,351,277.41/13,943.36
  6. Step 6: Final answer
    x = 5,332.38

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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.