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Finding the Fourth Proportional to 13,457.52, 20,186.22 and 3,597.78

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Solution

The fourth proportional to 13,457.52, 20,186.22 and 3,597.78 is: 5,396.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.52 : 20,186.22 = 3,597.78 : x
  2. Step 2: Convert to fraction form
    13,457.52/20,186.22 = 3,597.78/x
  3. Step 3: Cross multiply
    13,457.52x = 20,186.22 × 3,597.78
  4. Step 4: Simplify right side
    13,457.52x = 72,625,578.59
  5. Step 5: Solve for x
    x = 72,625,578.59/13,457.52
  6. Step 6: Final answer
    x = 5,396.65

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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.