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Finding the Fourth Proportional to 14,012.84, 20,999.82 and 7,079.24

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Solution

The fourth proportional to 14,012.84, 20,999.82 and 7,079.24 is: 10,609.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,012.84 : 20,999.82 = 7,079.24 : x
  2. Step 2: Convert to fraction form
    14,012.84/20,999.82 = 7,079.24/x
  3. Step 3: Cross multiply
    14,012.84x = 20,999.82 × 7,079.24
  4. Step 4: Simplify right side
    14,012.84x = 148,662,765.74
  5. Step 5: Solve for x
    x = 148,662,765.74/14,012.84
  6. Step 6: Final answer
    x = 10,609.04

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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.