Home / 14,262.24-21,390.72-3,871.44

Finding the Fourth Proportional to 14,262.24, 21,390.72 and 3,871.44

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Solution

The fourth proportional to 14,262.24, 21,390.72 and 3,871.44 is: 5,806.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,262.24 : 21,390.72 = 3,871.44 : x
  2. Step 2: Convert to fraction form
    14,262.24/21,390.72 = 3,871.44/x
  3. Step 3: Cross multiply
    14,262.24x = 21,390.72 × 3,871.44
  4. Step 4: Simplify right side
    14,262.24x = 82,812,889.04
  5. Step 5: Solve for x
    x = 82,812,889.04/14,262.24
  6. Step 6: Final answer
    x = 5,806.44

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1.5x scale

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.