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Finding the Fourth Proportional to 14,274, 21,411.27 and 3,886.02

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Solution

The fourth proportional to 14,274, 21,411.27 and 3,886.02 is: 5,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,274 : 21,411.27 = 3,886.02 : x
  2. Step 2: Convert to fraction form
    14,274/21,411.27 = 3,886.02/x
  3. Step 3: Cross multiply
    14,274x = 21,411.27 × 3,886.02
  4. Step 4: Simplify right side
    14,274x = 83,204,623.45
  5. Step 5: Solve for x
    x = 83,204,623.45/14,274
  6. Step 6: Final answer
    x = 5,829.10

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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.