Home / 12,129.44-18,179.56-6,582.56

Finding the Fourth Proportional to 12,129.44, 18,179.56 and 6,582.56

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Solution

The fourth proportional to 12,129.44, 18,179.56 and 6,582.56 is: 9,865.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129.44 : 18,179.56 = 6,582.56 : x
  2. Step 2: Convert to fraction form
    12,129.44/18,179.56 = 6,582.56/x
  3. Step 3: Cross multiply
    12,129.44x = 18,179.56 × 6,582.56
  4. Step 4: Simplify right side
    12,129.44x = 119,668,044.47
  5. Step 5: Solve for x
    x = 119,668,044.47/12,129.44
  6. Step 6: Final answer
    x = 9,865.92

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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.