Home / 11,272.58-16,911.62-7,947.32

Finding the Fourth Proportional to 11,272.58, 16,911.62 and 7,947.32

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Solution

The fourth proportional to 11,272.58, 16,911.62 and 7,947.32 is: 11,922.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.58 : 16,911.62 = 7,947.32 : x
  2. Step 2: Convert to fraction form
    11,272.58/16,911.62 = 7,947.32/x
  3. Step 3: Cross multiply
    11,272.58x = 16,911.62 × 7,947.32
  4. Step 4: Simplify right side
    11,272.58x = 134,401,931.56
  5. Step 5: Solve for x
    x = 134,401,931.56/11,272.58
  6. Step 6: Final answer
    x = 11,922.91

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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.