Home / 11,145.74-16,718.90-3,247.94

Finding the Fourth Proportional to 11,145.74, 16,718.90 and 3,247.94

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Solution

The fourth proportional to 11,145.74, 16,718.90 and 3,247.94 is: 4,871.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.74 : 16,718.90 = 3,247.94 : x
  2. Step 2: Convert to fraction form
    11,145.74/16,718.90 = 3,247.94/x
  3. Step 3: Cross multiply
    11,145.74x = 16,718.90 × 3,247.94
  4. Step 4: Simplify right side
    11,145.74x = 54,301,984.07
  5. Step 5: Solve for x
    x = 54,301,984.07/11,145.74
  6. Step 6: Final answer
    x = 4,871.99

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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.