Home / 12,078.91-16,668.83-6,701.29

Finding the Fourth Proportional to 12,078.91, 16,668.83 and 6,701.29

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Solution

The fourth proportional to 12,078.91, 16,668.83 and 6,701.29 is: 9,247.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078.91 : 16,668.83 = 6,701.29 : x
  2. Step 2: Convert to fraction form
    12,078.91/16,668.83 = 6,701.29/x
  3. Step 3: Cross multiply
    12,078.91x = 16,668.83 × 6,701.29
  4. Step 4: Simplify right side
    12,078.91x = 111,702,638.63
  5. Step 5: Solve for x
    x = 111,702,638.63/12,078.91
  6. Step 6: Final answer
    x = 9,247.74

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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.