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Finding the Fourth Proportional to 14,638.62, 21,962.02 and 5,879.69

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Solution

The fourth proportional to 14,638.62, 21,962.02 and 5,879.69 is: 8,821.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,638.62 : 21,962.02 = 5,879.69 : x
  2. Step 2: Convert to fraction form
    14,638.62/21,962.02 = 5,879.69/x
  3. Step 3: Cross multiply
    14,638.62x = 21,962.02 × 5,879.69
  4. Step 4: Simplify right side
    14,638.62x = 129,129,783.34
  5. Step 5: Solve for x
    x = 129,129,783.34/14,638.62
  6. Step 6: Final answer
    x = 8,821.17

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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.