Home / 13,012.44-19,520.68-4,245.32

Finding the Fourth Proportional to 13,012.44, 19,520.68 and 4,245.32

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Solution

The fourth proportional to 13,012.44, 19,520.68 and 4,245.32 is: 6,368.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.44 : 19,520.68 = 4,245.32 : x
  2. Step 2: Convert to fraction form
    13,012.44/19,520.68 = 4,245.32/x
  3. Step 3: Cross multiply
    13,012.44x = 19,520.68 × 4,245.32
  4. Step 4: Simplify right side
    13,012.44x = 82,871,533.22
  5. Step 5: Solve for x
    x = 82,871,533.22/13,012.44
  6. Step 6: Final answer
    x = 6,368.64

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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.