Home / 13,632.39-20,448.63-3,772.20

Finding the Fourth Proportional to 13,632.39, 20,448.63 and 3,772.20

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Solution

The fourth proportional to 13,632.39, 20,448.63 and 3,772.20 is: 5,658.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.39 : 20,448.63 = 3,772.20 : x
  2. Step 2: Convert to fraction form
    13,632.39/20,448.63 = 3,772.20/x
  3. Step 3: Cross multiply
    13,632.39x = 20,448.63 × 3,772.20
  4. Step 4: Simplify right side
    13,632.39x = 77,136,322.09
  5. Step 5: Solve for x
    x = 77,136,322.09/13,632.39
  6. Step 6: Final answer
    x = 5,658.31

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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.