Home / 12,156.22-18,202.77-10,412.41

Finding the Fourth Proportional to 12,156.22, 18,202.77 and 10,412.41

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Solution

The fourth proportional to 12,156.22, 18,202.77 and 10,412.41 is: 15,591.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.22 : 18,202.77 = 10,412.41 : x
  2. Step 2: Convert to fraction form
    12,156.22/18,202.77 = 10,412.41/x
  3. Step 3: Cross multiply
    12,156.22x = 18,202.77 × 10,412.41
  4. Step 4: Simplify right side
    12,156.22x = 189,534,704.38
  5. Step 5: Solve for x
    x = 189,534,704.38/12,156.22
  6. Step 6: Final answer
    x = 15,591.58

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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.