Home / 12,714.89-19,073.57-3,947.45

Finding the Fourth Proportional to 12,714.89, 19,073.57 and 3,947.45

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Solution

The fourth proportional to 12,714.89, 19,073.57 and 3,947.45 is: 5,921.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,714.89 : 19,073.57 = 3,947.45 : x
  2. Step 2: Convert to fraction form
    12,714.89/19,073.57 = 3,947.45/x
  3. Step 3: Cross multiply
    12,714.89x = 19,073.57 × 3,947.45
  4. Step 4: Simplify right side
    12,714.89x = 75,291,963.90
  5. Step 5: Solve for x
    x = 75,291,963.90/12,714.89
  6. Step 6: Final answer
    x = 5,921.56

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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.