Home / 13,488.26-20,234.79-4,128.10

Finding the Fourth Proportional to 13,488.26, 20,234.79 and 4,128.10

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Solution

The fourth proportional to 13,488.26, 20,234.79 and 4,128.10 is: 6,192.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.26 : 20,234.79 = 4,128.10 : x
  2. Step 2: Convert to fraction form
    13,488.26/20,234.79 = 4,128.10/x
  3. Step 3: Cross multiply
    13,488.26x = 20,234.79 × 4,128.10
  4. Step 4: Simplify right side
    13,488.26x = 83,531,186.01
  5. Step 5: Solve for x
    x = 83,531,186.01/13,488.26
  6. Step 6: Final answer
    x = 6,192.88

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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.