Home / 13,559.78-20,327.36-5,245.35

Finding the Fourth Proportional to 13,559.78, 20,327.36 and 5,245.35

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Solution

The fourth proportional to 13,559.78, 20,327.36 and 5,245.35 is: 7,863.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.78 : 20,327.36 = 5,245.35 : x
  2. Step 2: Convert to fraction form
    13,559.78/20,327.36 = 5,245.35/x
  3. Step 3: Cross multiply
    13,559.78x = 20,327.36 × 5,245.35
  4. Step 4: Simplify right side
    13,559.78x = 106,624,091.55
  5. Step 5: Solve for x
    x = 106,624,091.55/13,559.78
  6. Step 6: Final answer
    x = 7,863.26

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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.