Home / 12,341.63-18,512.45-3,107.63

Finding the Fourth Proportional to 12,341.63, 18,512.45 and 3,107.63

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Solution

The fourth proportional to 12,341.63, 18,512.45 and 3,107.63 is: 4,661.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,341.63 : 18,512.45 = 3,107.63 : x
  2. Step 2: Convert to fraction form
    12,341.63/18,512.45 = 3,107.63/x
  3. Step 3: Cross multiply
    12,341.63x = 18,512.45 × 3,107.63
  4. Step 4: Simplify right side
    12,341.63x = 57,529,736.89
  5. Step 5: Solve for x
    x = 57,529,736.89/12,341.63
  6. Step 6: Final answer
    x = 4,661.44

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Double scale
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Similar ratio
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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.