Home / 13,012.52-19,520.09-3,652.56

Finding the Fourth Proportional to 13,012.52, 19,520.09 and 3,652.56

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Solution

The fourth proportional to 13,012.52, 19,520.09 and 3,652.56 is: 5,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.52 : 19,520.09 = 3,652.56 : x
  2. Step 2: Convert to fraction form
    13,012.52/19,520.09 = 3,652.56/x
  3. Step 3: Cross multiply
    13,012.52x = 19,520.09 × 3,652.56
  4. Step 4: Simplify right side
    13,012.52x = 71,298,295.36
  5. Step 5: Solve for x
    x = 71,298,295.36/13,012.52
  6. Step 6: Final answer
    x = 5,479.21

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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.