Home / 13,841.91-20,752.81-5,519.43

Finding the Fourth Proportional to 13,841.91, 20,752.81 and 5,519.43

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Solution

The fourth proportional to 13,841.91, 20,752.81 and 5,519.43 is: 8,275.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.91 : 20,752.81 = 5,519.43 : x
  2. Step 2: Convert to fraction form
    13,841.91/20,752.81 = 5,519.43/x
  3. Step 3: Cross multiply
    13,841.91x = 20,752.81 × 5,519.43
  4. Step 4: Simplify right side
    13,841.91x = 114,543,668.30
  5. Step 5: Solve for x
    x = 114,543,668.30/13,841.91
  6. Step 6: Final answer
    x = 8,275.13

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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.