Home / 13,220.30-18,244.21-7,251.84

Finding the Fourth Proportional to 13,220.30, 18,244.21 and 7,251.84

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Solution

The fourth proportional to 13,220.30, 18,244.21 and 7,251.84 is: 10,007.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.30 : 18,244.21 = 7,251.84 : x
  2. Step 2: Convert to fraction form
    13,220.30/18,244.21 = 7,251.84/x
  3. Step 3: Cross multiply
    13,220.30x = 18,244.21 × 7,251.84
  4. Step 4: Simplify right side
    13,220.30x = 132,304,091.85
  5. Step 5: Solve for x
    x = 132,304,091.85/13,220.30
  6. Step 6: Final answer
    x = 10,007.65

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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.