Home / 13,811.09-20,725.72-7,575.48

Finding the Fourth Proportional to 13,811.09, 20,725.72 and 7,575.48

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Solution

The fourth proportional to 13,811.09, 20,725.72 and 7,575.48 is: 11,368.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.09 : 20,725.72 = 7,575.48 : x
  2. Step 2: Convert to fraction form
    13,811.09/20,725.72 = 7,575.48/x
  3. Step 3: Cross multiply
    13,811.09x = 20,725.72 × 7,575.48
  4. Step 4: Simplify right side
    13,811.09x = 157,007,202.08
  5. Step 5: Solve for x
    x = 157,007,202.08/13,811.09
  6. Step 6: Final answer
    x = 11,368.19

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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.