Home / 14,628.48-20,180.79-9,321.36

Finding the Fourth Proportional to 14,628.48, 20,180.79 and 9,321.36

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Solution

The fourth proportional to 14,628.48, 20,180.79 and 9,321.36 is: 12,859.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,628.48 : 20,180.79 = 9,321.36 : x
  2. Step 2: Convert to fraction form
    14,628.48/20,180.79 = 9,321.36/x
  3. Step 3: Cross multiply
    14,628.48x = 20,180.79 × 9,321.36
  4. Step 4: Simplify right side
    14,628.48x = 188,112,408.67
  5. Step 5: Solve for x
    x = 188,112,408.67/14,628.48
  6. Step 6: Final answer
    x = 12,859.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.