Home / 13,219.54-18,242.97-7,251.32

Finding the Fourth Proportional to 13,219.54, 18,242.97 and 7,251.32

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Solution

The fourth proportional to 13,219.54, 18,242.97 and 7,251.32 is: 10,006.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.54 : 18,242.97 = 7,251.32 : x
  2. Step 2: Convert to fraction form
    13,219.54/18,242.97 = 7,251.32/x
  3. Step 3: Cross multiply
    13,219.54x = 18,242.97 × 7,251.32
  4. Step 4: Simplify right side
    13,219.54x = 132,285,613.22
  5. Step 5: Solve for x
    x = 132,285,613.22/13,219.54
  6. Step 6: Final answer
    x = 10,006.83

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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.