Home / 12,694.20-19,058.40-7,434.60

Finding the Fourth Proportional to 12,694.20, 19,058.40 and 7,434.60

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Solution

The fourth proportional to 12,694.20, 19,058.40 and 7,434.60 is: 11,161.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.20 : 19,058.40 = 7,434.60 : x
  2. Step 2: Convert to fraction form
    12,694.20/19,058.40 = 7,434.60/x
  3. Step 3: Cross multiply
    12,694.20x = 19,058.40 × 7,434.60
  4. Step 4: Simplify right side
    12,694.20x = 141,691,580.64
  5. Step 5: Solve for x
    x = 141,691,580.64/12,694.20
  6. Step 6: Final answer
    x = 11,161.91

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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.