Home / 13,752.48-20,634.30-8,208.84

Finding the Fourth Proportional to 13,752.48, 20,634.30 and 8,208.84

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Solution

The fourth proportional to 13,752.48, 20,634.30 and 8,208.84 is: 12,316.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.48 : 20,634.30 = 8,208.84 : x
  2. Step 2: Convert to fraction form
    13,752.48/20,634.30 = 8,208.84/x
  3. Step 3: Cross multiply
    13,752.48x = 20,634.30 × 8,208.84
  4. Step 4: Simplify right side
    13,752.48x = 169,383,667.21
  5. Step 5: Solve for x
    x = 169,383,667.21/13,752.48
  6. Step 6: Final answer
    x = 12,316.59

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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.