Home / 13,412.07-20,198.40-12,214.98

Finding the Fourth Proportional to 13,412.07, 20,198.40 and 12,214.98

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Solution

The fourth proportional to 13,412.07, 20,198.40 and 12,214.98 is: 18,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.07 : 20,198.40 = 12,214.98 : x
  2. Step 2: Convert to fraction form
    13,412.07/20,198.40 = 12,214.98/x
  3. Step 3: Cross multiply
    13,412.07x = 20,198.40 × 12,214.98
  4. Step 4: Simplify right side
    13,412.07x = 246,723,052.03
  5. Step 5: Solve for x
    x = 246,723,052.03/13,412.07
  6. Step 6: Final answer
    x = 18,395.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.