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Finding the Fourth Proportional to 14,614.16, 21,918 and 8,772.44

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Solution

The fourth proportional to 14,614.16, 21,918 and 8,772.44 is: 13,156.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,614.16 : 21,918 = 8,772.44 : x
  2. Step 2: Convert to fraction form
    14,614.16/21,918 = 8,772.44/x
  3. Step 3: Cross multiply
    14,614.16x = 21,918 × 8,772.44
  4. Step 4: Simplify right side
    14,614.16x = 192,274,339.92
  5. Step 5: Solve for x
    x = 192,274,339.92/14,614.16
  6. Step 6: Final answer
    x = 13,156.72

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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.