Home / 10,620.66-15,931.04-3,225.18

Finding the Fourth Proportional to 10,620.66, 15,931.04 and 3,225.18

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Solution

The fourth proportional to 10,620.66, 15,931.04 and 3,225.18 is: 4,837.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.66 : 15,931.04 = 3,225.18 : x
  2. Step 2: Convert to fraction form
    10,620.66/15,931.04 = 3,225.18/x
  3. Step 3: Cross multiply
    10,620.66x = 15,931.04 × 3,225.18
  4. Step 4: Simplify right side
    10,620.66x = 51,380,471.59
  5. Step 5: Solve for x
    x = 51,380,471.59/10,620.66
  6. Step 6: Final answer
    x = 4,837.79

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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.