Home / 13,424.37-20,136.93-3,563.65

Finding the Fourth Proportional to 13,424.37, 20,136.93 and 3,563.65

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Solution

The fourth proportional to 13,424.37, 20,136.93 and 3,563.65 is: 5,345.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.37 : 20,136.93 = 3,563.65 : x
  2. Step 2: Convert to fraction form
    13,424.37/20,136.93 = 3,563.65/x
  3. Step 3: Cross multiply
    13,424.37x = 20,136.93 × 3,563.65
  4. Step 4: Simplify right side
    13,424.37x = 71,760,970.59
  5. Step 5: Solve for x
    x = 71,760,970.59/13,424.37
  6. Step 6: Final answer
    x = 5,345.57

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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.