Home / 13,441.78-20,164.29-5,649.58

Finding the Fourth Proportional to 13,441.78, 20,164.29 and 5,649.58

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Solution

The fourth proportional to 13,441.78, 20,164.29 and 5,649.58 is: 8,475.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.78 : 20,164.29 = 5,649.58 : x
  2. Step 2: Convert to fraction form
    13,441.78/20,164.29 = 5,649.58/x
  3. Step 3: Cross multiply
    13,441.78x = 20,164.29 × 5,649.58
  4. Step 4: Simplify right side
    13,441.78x = 113,919,769.50
  5. Step 5: Solve for x
    x = 113,919,769.50/13,441.78
  6. Step 6: Final answer
    x = 8,475.05

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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.