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Finding the Fourth Proportional to 14,363.81, 19,819.91 and 8,074.97

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Solution

The fourth proportional to 14,363.81, 19,819.91 and 8,074.97 is: 11,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,363.81 : 19,819.91 = 8,074.97 : x
  2. Step 2: Convert to fraction form
    14,363.81/19,819.91 = 8,074.97/x
  3. Step 3: Cross multiply
    14,363.81x = 19,819.91 × 8,074.97
  4. Step 4: Simplify right side
    14,363.81x = 160,045,099.74
  5. Step 5: Solve for x
    x = 160,045,099.74/14,363.81
  6. Step 6: Final answer
    x = 11,142.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.