Home / 10,621.56-15,931.31-3,226.08

Finding the Fourth Proportional to 10,621.56, 15,931.31 and 3,226.08

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Solution

The fourth proportional to 10,621.56, 15,931.31 and 3,226.08 is: 4,838.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.56 : 15,931.31 = 3,226.08 : x
  2. Step 2: Convert to fraction form
    10,621.56/15,931.31 = 3,226.08/x
  3. Step 3: Cross multiply
    10,621.56x = 15,931.31 × 3,226.08
  4. Step 4: Simplify right side
    10,621.56x = 51,395,664.43
  5. Step 5: Solve for x
    x = 51,395,664.43/10,621.56
  6. Step 6: Final answer
    x = 4,838.81

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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.