Home / 13,573.40-20,361.30-3,712.72

Finding the Fourth Proportional to 13,573.40, 20,361.30 and 3,712.72

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Solution

The fourth proportional to 13,573.40, 20,361.30 and 3,712.72 is: 5,569.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,573.40 : 20,361.30 = 3,712.72 : x
  2. Step 2: Convert to fraction form
    13,573.40/20,361.30 = 3,712.72/x
  3. Step 3: Cross multiply
    13,573.40x = 20,361.30 × 3,712.72
  4. Step 4: Simplify right side
    13,573.40x = 75,595,805.74
  5. Step 5: Solve for x
    x = 75,595,805.74/13,573.40
  6. Step 6: Final answer
    x = 5,569.41

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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.