Home / 13,649.35-20,474.60-4,765.57

Finding the Fourth Proportional to 13,649.35, 20,474.60 and 4,765.57

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Solution

The fourth proportional to 13,649.35, 20,474.60 and 4,765.57 is: 7,148.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649.35 : 20,474.60 = 4,765.57 : x
  2. Step 2: Convert to fraction form
    13,649.35/20,474.60 = 4,765.57/x
  3. Step 3: Cross multiply
    13,649.35x = 20,474.60 × 4,765.57
  4. Step 4: Simplify right side
    13,649.35x = 97,573,151.44
  5. Step 5: Solve for x
    x = 97,573,151.44/13,649.35
  6. Step 6: Final answer
    x = 7,148.56

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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.