Home / 13,849.76-20,743.66-6,443.12

Finding the Fourth Proportional to 13,849.76, 20,743.66 and 6,443.12

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Solution

The fourth proportional to 13,849.76, 20,743.66 and 6,443.12 is: 9,650.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,849.76 : 20,743.66 = 6,443.12 : x
  2. Step 2: Convert to fraction form
    13,849.76/20,743.66 = 6,443.12/x
  3. Step 3: Cross multiply
    13,849.76x = 20,743.66 × 6,443.12
  4. Step 4: Simplify right side
    13,849.76x = 133,653,858.40
  5. Step 5: Solve for x
    x = 133,653,858.40/13,849.76
  6. Step 6: Final answer
    x = 9,650.27

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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.