Home / 12,169.34-18,254.20-5,148.48

Finding the Fourth Proportional to 12,169.34, 18,254.20 and 5,148.48

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Solution

The fourth proportional to 12,169.34, 18,254.20 and 5,148.48 is: 7,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.34 : 18,254.20 = 5,148.48 : x
  2. Step 2: Convert to fraction form
    12,169.34/18,254.20 = 5,148.48/x
  3. Step 3: Cross multiply
    12,169.34x = 18,254.20 × 5,148.48
  4. Step 4: Simplify right side
    12,169.34x = 93,981,383.62
  5. Step 5: Solve for x
    x = 93,981,383.62/12,169.34
  6. Step 6: Final answer
    x = 7,722.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.