Home / 13,079.39-18,048.03-7,414.79

Finding the Fourth Proportional to 13,079.39, 18,048.03 and 7,414.79

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Solution

The fourth proportional to 13,079.39, 18,048.03 and 7,414.79 is: 10,231.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.39 : 18,048.03 = 7,414.79 : x
  2. Step 2: Convert to fraction form
    13,079.39/18,048.03 = 7,414.79/x
  3. Step 3: Cross multiply
    13,079.39x = 18,048.03 × 7,414.79
  4. Step 4: Simplify right side
    13,079.39x = 133,822,352.36
  5. Step 5: Solve for x
    x = 133,822,352.36/13,079.39
  6. Step 6: Final answer
    x = 10,231.54

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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.