Home / 12,921.92-17,832.80-7,333.44

Finding the Fourth Proportional to 12,921.92, 17,832.80 and 7,333.44

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Solution

The fourth proportional to 12,921.92, 17,832.80 and 7,333.44 is: 10,120.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921.92 : 17,832.80 = 7,333.44 : x
  2. Step 2: Convert to fraction form
    12,921.92/17,832.80 = 7,333.44/x
  3. Step 3: Cross multiply
    12,921.92x = 17,832.80 × 7,333.44
  4. Step 4: Simplify right side
    12,921.92x = 130,775,768.83
  5. Step 5: Solve for x
    x = 130,775,768.83/12,921.92
  6. Step 6: Final answer
    x = 10,120.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.