Home / 13,412.42-20,118.64-3,552.47

Finding the Fourth Proportional to 13,412.42, 20,118.64 and 3,552.47

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Solution

The fourth proportional to 13,412.42, 20,118.64 and 3,552.47 is: 5,328.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.42 : 20,118.64 = 3,552.47 : x
  2. Step 2: Convert to fraction form
    13,412.42/20,118.64 = 3,552.47/x
  3. Step 3: Cross multiply
    13,412.42x = 20,118.64 × 3,552.47
  4. Step 4: Simplify right side
    13,412.42x = 71,470,950.84
  5. Step 5: Solve for x
    x = 71,470,950.84/13,412.42
  6. Step 6: Final answer
    x = 5,328.71

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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.