Home / 10,621.64-15,932.79-3,601.55

Finding the Fourth Proportional to 10,621.64, 15,932.79 and 3,601.55

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Solution

The fourth proportional to 10,621.64, 15,932.79 and 3,601.55 is: 5,402.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.64 : 15,932.79 = 3,601.55 : x
  2. Step 2: Convert to fraction form
    10,621.64/15,932.79 = 3,601.55/x
  3. Step 3: Cross multiply
    10,621.64x = 15,932.79 × 3,601.55
  4. Step 4: Simplify right side
    10,621.64x = 57,382,739.82
  5. Step 5: Solve for x
    x = 57,382,739.82/10,621.64
  6. Step 6: Final answer
    x = 5,402.44

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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.