Home / 13,563.05-20,327.56-7,322.81

Finding the Fourth Proportional to 13,563.05, 20,327.56 and 7,322.81

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Solution

The fourth proportional to 13,563.05, 20,327.56 and 7,322.81 is: 10,975.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.05 : 20,327.56 = 7,322.81 : x
  2. Step 2: Convert to fraction form
    13,563.05/20,327.56 = 7,322.81/x
  3. Step 3: Cross multiply
    13,563.05x = 20,327.56 × 7,322.81
  4. Step 4: Simplify right side
    13,563.05x = 148,854,739.70
  5. Step 5: Solve for x
    x = 148,854,739.70/13,563.05
  6. Step 6: Final answer
    x = 10,975.02

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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.