Home / 14,286.16-21,429.24-3,897.88

Finding the Fourth Proportional to 14,286.16, 21,429.24 and 3,897.88

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Solution

The fourth proportional to 14,286.16, 21,429.24 and 3,897.88 is: 5,846.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.16 : 21,429.24 = 3,897.88 : x
  2. Step 2: Convert to fraction form
    14,286.16/21,429.24 = 3,897.88/x
  3. Step 3: Cross multiply
    14,286.16x = 21,429.24 × 3,897.88
  4. Step 4: Simplify right side
    14,286.16x = 83,528,606.01
  5. Step 5: Solve for x
    x = 83,528,606.01/14,286.16
  6. Step 6: Final answer
    x = 5,846.82

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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.