Home / 13,722.39-20,571.33-4,955.34

Finding the Fourth Proportional to 13,722.39, 20,571.33 and 4,955.34

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Solution

The fourth proportional to 13,722.39, 20,571.33 and 4,955.34 is: 7,428.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.39 : 20,571.33 = 4,955.34 : x
  2. Step 2: Convert to fraction form
    13,722.39/20,571.33 = 4,955.34/x
  3. Step 3: Cross multiply
    13,722.39x = 20,571.33 × 4,955.34
  4. Step 4: Simplify right side
    13,722.39x = 101,937,934.40
  5. Step 5: Solve for x
    x = 101,937,934.40/13,722.39
  6. Step 6: Final answer
    x = 7,428.58

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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.