Home / 13,537.35-20,308.76-4,778.42

Finding the Fourth Proportional to 13,537.35, 20,308.76 and 4,778.42

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Solution

The fourth proportional to 13,537.35, 20,308.76 and 4,778.42 is: 7,168.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.35 : 20,308.76 = 4,778.42 : x
  2. Step 2: Convert to fraction form
    13,537.35/20,308.76 = 4,778.42/x
  3. Step 3: Cross multiply
    13,537.35x = 20,308.76 × 4,778.42
  4. Step 4: Simplify right side
    13,537.35x = 97,043,659.52
  5. Step 5: Solve for x
    x = 97,043,659.52/13,537.35
  6. Step 6: Final answer
    x = 7,168.59

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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.