Home / 13,503.54-20,255.31-5,712.42

Finding the Fourth Proportional to 13,503.54, 20,255.31 and 5,712.42

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Solution

The fourth proportional to 13,503.54, 20,255.31 and 5,712.42 is: 8,568.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,503.54 : 20,255.31 = 5,712.42 : x
  2. Step 2: Convert to fraction form
    13,503.54/20,255.31 = 5,712.42/x
  3. Step 3: Cross multiply
    13,503.54x = 20,255.31 × 5,712.42
  4. Step 4: Simplify right side
    13,503.54x = 115,706,837.95
  5. Step 5: Solve for x
    x = 115,706,837.95/13,503.54
  6. Step 6: Final answer
    x = 8,568.63

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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.