Home / 13,669.41-20,505.38-6,272.79

Finding the Fourth Proportional to 13,669.41, 20,505.38 and 6,272.79

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Solution

The fourth proportional to 13,669.41, 20,505.38 and 6,272.79 is: 9,409.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.41 : 20,505.38 = 6,272.79 : x
  2. Step 2: Convert to fraction form
    13,669.41/20,505.38 = 6,272.79/x
  3. Step 3: Cross multiply
    13,669.41x = 20,505.38 × 6,272.79
  4. Step 4: Simplify right side
    13,669.41x = 128,625,911.25
  5. Step 5: Solve for x
    x = 128,625,911.25/13,669.41
  6. Step 6: Final answer
    x = 9,409.76

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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.