Home / 7,947.83-11,925.12-3,997

Finding the Fourth Proportional to 7,947.83, 11,925.12 and 3,997

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Solution

The fourth proportional to 7,947.83, 11,925.12 and 3,997 is: 5,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.83 : 11,925.12 = 3,997 : x
  2. Step 2: Convert to fraction form
    7,947.83/11,925.12 = 3,997/x
  3. Step 3: Cross multiply
    7,947.83x = 11,925.12 × 3,997
  4. Step 4: Simplify right side
    7,947.83x = 47,664,704.64
  5. Step 5: Solve for x
    x = 47,664,704.64/7,947.83
  6. Step 6: Final answer
    x = 5,997.20

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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.