Home / 12,102.21-18,158.85-6,255.63

Finding the Fourth Proportional to 12,102.21, 18,158.85 and 6,255.63

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Solution

The fourth proportional to 12,102.21, 18,158.85 and 6,255.63 is: 9,386.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102.21 : 18,158.85 = 6,255.63 : x
  2. Step 2: Convert to fraction form
    12,102.21/18,158.85 = 6,255.63/x
  3. Step 3: Cross multiply
    12,102.21x = 18,158.85 × 6,255.63
  4. Step 4: Simplify right side
    12,102.21x = 113,595,046.83
  5. Step 5: Solve for x
    x = 113,595,046.83/12,102.21
  6. Step 6: Final answer
    x = 9,386.31

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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.