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Finding the Fourth Proportional to 14,649.71, 21,919.68 and 8,704.94

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Solution

The fourth proportional to 14,649.71, 21,919.68 and 8,704.94 is: 13,024.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.71 : 21,919.68 = 8,704.94 : x
  2. Step 2: Convert to fraction form
    14,649.71/21,919.68 = 8,704.94/x
  3. Step 3: Cross multiply
    14,649.71x = 21,919.68 × 8,704.94
  4. Step 4: Simplify right side
    14,649.71x = 190,809,389.62
  5. Step 5: Solve for x
    x = 190,809,389.62/14,649.71
  6. Step 6: Final answer
    x = 13,024.79

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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.