Home / 13,632.12-20,448.59-3,772.13

Finding the Fourth Proportional to 13,632.12, 20,448.59 and 3,772.13

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Solution

The fourth proportional to 13,632.12, 20,448.59 and 3,772.13 is: 5,658.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.12 : 20,448.59 = 3,772.13 : x
  2. Step 2: Convert to fraction form
    13,632.12/20,448.59 = 3,772.13/x
  3. Step 3: Cross multiply
    13,632.12x = 20,448.59 × 3,772.13
  4. Step 4: Simplify right side
    13,632.12x = 77,134,618.69
  5. Step 5: Solve for x
    x = 77,134,618.69/13,632.12
  6. Step 6: Final answer
    x = 5,658.30

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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.