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Finding the Fourth Proportional to 14,009.43, 21,015 and 4,522.71

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Solution

The fourth proportional to 14,009.43, 21,015 and 4,522.71 is: 6,784.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.43 : 21,015 = 4,522.71 : x
  2. Step 2: Convert to fraction form
    14,009.43/21,015 = 4,522.71/x
  3. Step 3: Cross multiply
    14,009.43x = 21,015 × 4,522.71
  4. Step 4: Simplify right side
    14,009.43x = 95,044,750.65
  5. Step 5: Solve for x
    x = 95,044,750.65/14,009.43
  6. Step 6: Final answer
    x = 6,784.34

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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.