Home / 12,071.28-16,668-8,095.80

Finding the Fourth Proportional to 12,071.28, 16,668 and 8,095.80

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Solution

The fourth proportional to 12,071.28, 16,668 and 8,095.80 is: 11,178.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071.28 : 16,668 = 8,095.80 : x
  2. Step 2: Convert to fraction form
    12,071.28/16,668 = 8,095.80/x
  3. Step 3: Cross multiply
    12,071.28x = 16,668 × 8,095.80
  4. Step 4: Simplify right side
    12,071.28x = 134,940,794.40
  5. Step 5: Solve for x
    x = 134,940,794.40/12,071.28
  6. Step 6: Final answer
    x = 11,178.66

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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.