Home / 13,438.96-20,160.60-4,676.36

Finding the Fourth Proportional to 13,438.96, 20,160.60 and 4,676.36

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Solution

The fourth proportional to 13,438.96, 20,160.60 and 4,676.36 is: 7,015.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438.96 : 20,160.60 = 4,676.36 : x
  2. Step 2: Convert to fraction form
    13,438.96/20,160.60 = 4,676.36/x
  3. Step 3: Cross multiply
    13,438.96x = 20,160.60 × 4,676.36
  4. Step 4: Simplify right side
    13,438.96x = 94,278,223.42
  5. Step 5: Solve for x
    x = 94,278,223.42/13,438.96
  6. Step 6: Final answer
    x = 7,015.29

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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.