Home / 13,456.48-20,179.52-6,434.62

Finding the Fourth Proportional to 13,456.48, 20,179.52 and 6,434.62

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Solution

The fourth proportional to 13,456.48, 20,179.52 and 6,434.62 is: 9,649.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.48 : 20,179.52 = 6,434.62 : x
  2. Step 2: Convert to fraction form
    13,456.48/20,179.52 = 6,434.62/x
  3. Step 3: Cross multiply
    13,456.48x = 20,179.52 × 6,434.62
  4. Step 4: Simplify right side
    13,456.48x = 129,847,542.98
  5. Step 5: Solve for x
    x = 129,847,542.98/13,456.48
  6. Step 6: Final answer
    x = 9,649.44

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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.