Home / 13,219.94-18,244.68-7,252.78

Finding the Fourth Proportional to 13,219.94, 18,244.68 and 7,252.78

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Solution

The fourth proportional to 13,219.94, 18,244.68 and 7,252.78 is: 10,009.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.94 : 18,244.68 = 7,252.78 : x
  2. Step 2: Convert to fraction form
    13,219.94/18,244.68 = 7,252.78/x
  3. Step 3: Cross multiply
    13,219.94x = 18,244.68 × 7,252.78
  4. Step 4: Simplify right side
    13,219.94x = 132,324,650.21
  5. Step 5: Solve for x
    x = 132,324,650.21/13,219.94
  6. Step 6: Final answer
    x = 10,009.47

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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.