Home / 12,668.18-18,995.78-4,345.97

Finding the Fourth Proportional to 12,668.18, 18,995.78 and 4,345.97

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Solution

The fourth proportional to 12,668.18, 18,995.78 and 4,345.97 is: 6,516.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.18 : 18,995.78 = 4,345.97 : x
  2. Step 2: Convert to fraction form
    12,668.18/18,995.78 = 4,345.97/x
  3. Step 3: Cross multiply
    12,668.18x = 18,995.78 × 4,345.97
  4. Step 4: Simplify right side
    12,668.18x = 82,555,005.89
  5. Step 5: Solve for x
    x = 82,555,005.89/12,668.18
  6. Step 6: Final answer
    x = 6,516.72

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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.