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Finding the Fourth Proportional to 14,042.11, 21,052.15 and 7,018.65

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Solution

The fourth proportional to 14,042.11, 21,052.15 and 7,018.65 is: 10,522.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042.11 : 21,052.15 = 7,018.65 : x
  2. Step 2: Convert to fraction form
    14,042.11/21,052.15 = 7,018.65/x
  3. Step 3: Cross multiply
    14,042.11x = 21,052.15 × 7,018.65
  4. Step 4: Simplify right side
    14,042.11x = 147,757,694.53
  5. Step 5: Solve for x
    x = 147,757,694.53/14,042.11
  6. Step 6: Final answer
    x = 10,522.47

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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.