Home / 13,442.32-18,546.12-8,135.44

Finding the Fourth Proportional to 13,442.32, 18,546.12 and 8,135.44

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Solution

The fourth proportional to 13,442.32, 18,546.12 and 8,135.44 is: 11,224.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.32 : 18,546.12 = 8,135.44 : x
  2. Step 2: Convert to fraction form
    13,442.32/18,546.12 = 8,135.44/x
  3. Step 3: Cross multiply
    13,442.32x = 18,546.12 × 8,135.44
  4. Step 4: Simplify right side
    13,442.32x = 150,880,846.49
  5. Step 5: Solve for x
    x = 150,880,846.49/13,442.32
  6. Step 6: Final answer
    x = 11,224.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.