Home / 13,222.28-18,245.82-7,253.81

Finding the Fourth Proportional to 13,222.28, 18,245.82 and 7,253.81

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Solution

The fourth proportional to 13,222.28, 18,245.82 and 7,253.81 is: 10,009.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.28 : 18,245.82 = 7,253.81 : x
  2. Step 2: Convert to fraction form
    13,222.28/18,245.82 = 7,253.81/x
  3. Step 3: Cross multiply
    13,222.28x = 18,245.82 × 7,253.81
  4. Step 4: Simplify right side
    13,222.28x = 132,351,711.57
  5. Step 5: Solve for x
    x = 132,351,711.57/13,222.28
  6. Step 6: Final answer
    x = 10,009.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.