Home / 13,659.49-20,491.99-4,301.86

Finding the Fourth Proportional to 13,659.49, 20,491.99 and 4,301.86

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Solution

The fourth proportional to 13,659.49, 20,491.99 and 4,301.86 is: 6,453.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.49 : 20,491.99 = 4,301.86 : x
  2. Step 2: Convert to fraction form
    13,659.49/20,491.99 = 4,301.86/x
  3. Step 3: Cross multiply
    13,659.49x = 20,491.99 × 4,301.86
  4. Step 4: Simplify right side
    13,659.49x = 88,153,648.54
  5. Step 5: Solve for x
    x = 88,153,648.54/13,659.49
  6. Step 6: Final answer
    x = 6,453.66

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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.