Home / 19,947.20-29,913.32-6,617.72

Finding the Fourth Proportional to 19,947.20, 29,913.32 and 6,617.72

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Solution

The fourth proportional to 19,947.20, 29,913.32 and 6,617.72 is: 9,924.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.20 : 29,913.32 = 6,617.72 : x
  2. Step 2: Convert to fraction form
    19,947.20/29,913.32 = 6,617.72/x
  3. Step 3: Cross multiply
    19,947.20x = 29,913.32 × 6,617.72
  4. Step 4: Simplify right side
    19,947.20x = 197,958,067.36
  5. Step 5: Solve for x
    x = 197,958,067.36/19,947.20
  6. Step 6: Final answer
    x = 9,924.11

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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.