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Finding the Fourth Proportional to 14,665.03, 21,984.21 and 7,636.78

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Solution

The fourth proportional to 14,665.03, 21,984.21 and 7,636.78 is: 11,448.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,665.03 : 21,984.21 = 7,636.78 : x
  2. Step 2: Convert to fraction form
    14,665.03/21,984.21 = 7,636.78/x
  3. Step 3: Cross multiply
    14,665.03x = 21,984.21 × 7,636.78
  4. Step 4: Simplify right side
    14,665.03x = 167,888,575.24
  5. Step 5: Solve for x
    x = 167,888,575.24/14,665.03
  6. Step 6: Final answer
    x = 11,448.23

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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.