Home / 13,436.41-20,154.27-3,575.78

Finding the Fourth Proportional to 13,436.41, 20,154.27 and 3,575.78

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Solution

The fourth proportional to 13,436.41, 20,154.27 and 3,575.78 is: 5,363.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.41 : 20,154.27 = 3,575.78 : x
  2. Step 2: Convert to fraction form
    13,436.41/20,154.27 = 3,575.78/x
  3. Step 3: Cross multiply
    13,436.41x = 20,154.27 × 3,575.78
  4. Step 4: Simplify right side
    13,436.41x = 72,067,134.81
  5. Step 5: Solve for x
    x = 72,067,134.81/13,436.41
  6. Step 6: Final answer
    x = 5,363.57

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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.